user: You are a structured reasoning expert tasked with solving problems step by step. 
You first think about the reasoning process in the mind and then provide the answer. The reasoning process and answer should be enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think> reasoning process here </think> <answer> answer here </answer>. 
Given a question and the associated knowledge graph triplets (entity, relation, entity), you are asked to answer the question with these triplets and your own knowledge. 
You can break down the original question into several sub-questions and explore the given knowledge graph to solve them step-by-step. If there are multiple possible answers, choose one as the final answer. 
After thinking, when you finally reach a conclusion, clearly state the answer within <answer> </answer> tags, i.e., <answer> answer here </answer>. 
Question: What do you call members of the senate that was an office position held from 1999? 
Knowledge Triplets: United States Senate Committee on Finance, common.topic.article, m.0386mc
United States Senate, common.topic.webpage, m.03ldgbc
United States Senate, common.topic.webpage, m.0422l7l
United States Senator, fictional_universe.character_occupation.characters_with_this_occupation, John \"Bluto\" Blutarsky
m.09rfdwh, government.government_position_held.office_position_or_title, President pro tempore of the United States Senate
United States Senate Committee on Appropriations, government.legislative_committee.members, m.030r1g8
United States Senate minority leader, government.government_office_or_title.office_holders, m.052jk2b
m.04mmcc8, government.government_position_held.office_position_or_title, President pro tempore of the United States Senate
United States Senate Committee on the Budget, government.legislative_committee.members, m.03bqfc4
United States Senate Committee on Rules and Administration, government.legislative_committee.members, m.02_wskv
United States Senate Committee on Armed Services, government.legislative_committee.members, m.02_wk09
United States Senate minority leader, common.topic.notable_types, Government Office or Title
United States Senate Committee on Finance, government.legislative_committee.members, m.02_wkd1
United States Senate, business.employer.employees, m.04c_jdh
United States Senate, government.governmental_body.committees, United States Senate Committee on Rules and Administration
United States Senator, government.government_office_or_title.governmental_body_if_any, United States Congress
United States Senate Committee on Armed Services, government.legislative_committee.members, m.030qn9x
United States Senate Committee on Appropriations, government.legislative_committee.members, m.05nls2p
m.02_wy7y, government.legislative_committee_membership.committee, United States Senate Committee on Rules and Administration
m.052jk8c, government.government_position_held.jurisdiction_of_office, United States of America
United States Senate majority leader, government.government_office_or_title.governmental_body_if_any, United States Senate
President pro tempore of the United States Senate, common.topic.webpage, m.09vkhqw
Counsel to the U.S. Senate Judiciary Committee, business.job_title.people_with_this_title, m.05nmypf
United States Senate Committee on the Judiciary, business.employer.employees, m.04zjkjf
United States Senate Democratic Whip, common.topic.notable_types, Government Office or Title
m.052jk8v, government.government_position_held.office_position_or_title, United States Senate majority leader
United States Senator, base.descriptive_names.names.descriptive_name, m.01011v4m
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh2d
United States Congress, government.governmental_body.offices_positions, President pro tempore of the United States Senate
United States Senate, book.author.works_written, The journal of the Senate, including the Journal of the Executive proceedings of the Senate
United States Senate, book.book_subject.works, Profiles in Courage
m.0422l7l, common.webpage.topic, United States Senate
United States Senate, government.governmental_body.committees, United States Senate Committee on Commerce, Science, and Transportation
m.04mmcc8, government.government_position_held.jurisdiction_of_office, United States of America
United States Senate, business.employer.employees, m.0514c93
United States Senate, business.employer.employees, m.04flg3q
United States Senate, common.topic.image, 600px-Senate_Seal.svg.png
United States Senate minority leader, common.topic.notable_for, g.125bpghx2
United States Senate, government.governmental_body.offices_positions, Assistant Minority Leader of the United States Senate
United States Senator, base.descriptive_names.names.descriptive_name, m.01011v2m
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh4q
United States Senate, business.employer.employees, m.04c_jd2
Aide to Senator Abourezk, business.job_title.people_with_this_title, m.05cvl12
m.03ldgbc, common.webpage.topic, United States Senate
President pro tempore of the United States Senate, government.government_office_or_title.governmental_body_if_any, United States Congress
President pro tempore of the United States Senate, common.topic.webpage, m.0chcy29
United States Senate minority leader, government.government_office_or_title.office_holders, m.05k9jtj
United States House of Representatives, government.governmental_body.offices_positions, Speaker of the United States House of Representatives
Secretary of the United States Senate, common.topic.article, m.03by0n
President pro tempore of the United States Senate, government.government_office_or_title.governmental_body_if_any, United States Senate
United States Senate, business.employer.employees, m.04fzffc
m.0k1bgw_, government.government_position_held.office_position_or_title, United States Senate majority leader
United States Senate Committee on the Judiciary, business.employer.employees, m.010131jp
m.0nbz2xd, government.government_position_held.governmental_body, United States Senate
United States Senate Committee on the Judiciary, government.legislative_committee.members, m.05lmm6l
United States Senate, business.employer.employees, m.0j2db1s
United States Senator, government.government_office_or_title.governmental_body_if_any, United States Senate
m.09vkhqw, common.webpage.topic, President pro tempore of the United States Senate
United States Congress, government.governmental_body.offices_positions, United States Representative
m.02_wpdj, government.legislative_committee_membership.committee, United States Senate Committee on Rules and Administration
Assistant Minority Leader of the United States Senate, government.government_office_or_title.governmental_body_if_any, United States Senate
United States Senate Democratic Whip, common.topic.notable_for, g.1257w3yrx
United States House of Representatives, government.governmental_body.offices_positions, United States Representative
The journal of the Senate, including the Journal of the Executive proceedings of the Senate, book.written_work.author, United States Senate
United States Senate, common.topic.notable_for, g.1259v06zd
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.02_ws9_
m.06ybx7l, business.employment_tenure.company, United States Senate
United States Senator, base.descriptive_names.names.descriptive_name, m.01011v3g
United States Senate, visual_art.art_owner.artworks_owned, m.051s2bv
United States Senate, business.employer.employees, m.07sgqlf
United States Senate Committee on Armed Services, government.legislative_committee.members, m.02_wjvp
m.04kq01t, business.employment_tenure.title, Counsel, Subcommittee on Constitutional Amendments, U.S. Senate Judiciary Committee
m.0y5pknn, government.government_position_held.governmental_body, United States Congress
President pro tempore of the United States Senate, common.topic.image, Byrd of2
United States Senate Committee on Foreign Relations, business.employer.employees, m.063h8zs
United States Senate, common.topic.article, m.07t5l
United States Senate, visual_art.art_owner.artworks_owned, m.09ryl3h
United States Senate, business.employer.employees, m.0514cb6
United States Senate graphic arts collection, book.written_work.author, United States Senate
United States Senate, government.governmental_body.offices_positions, United States Senate Page
United States Senate Committee on Finance, government.legislative_committee.legislature, United States Senate
United States Senate, visual_art.art_owner.artworks_owned, m.09rykyc
United States Senate Committee on Commerce, Science, and Transportation, common.topic.article, m.02y0sr
United States Senate, government.governmental_body.offices_positions, United States Senator
United States Senator, government.government_office_or_title.jurisdiction, United States of America
United States Senate, business.employer.employees, m.05fz_hg
United States Senate Committee on Armed Services, common.topic.article, m.02kfvf
United States Senate, government.governmental_body.committees, United States Senate Select Committee on Intelligence
United States Senate, book.author.works_written, United States Senate graphic arts collection
United States Senate Committee on Finance, government.legislative_committee.members, m.05lmm5r
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh1x
m.0nbz0_p, government.government_position_held.governmental_body, United States Senate
Chief of Staff, US Senate Committee on Foreign Relations, business.job_title.people_with_this_title, m.04flgfv
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.030qq6_
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.05b8v53
United States Senate, business.employer.employees, m.06ybx7l
United States Senate Committee on Finance, government.legislative_committee.members, m.03bqfby
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh2_
Secretary of the United States Senate, common.topic.notable_for, g.125g4ph_v
United States Senate Committee on the Judiciary, common.topic.notable_types, Legislative committee
United States Senate Committee on the Budget, government.legislative_committee.members, m.05lmm6s
United States Senate majority leader, common.topic.notable_types, Government Office or Title
United States Senator, common.topic.notable_types, Government Office or Title
United States Senate, business.employer.employees, m.0514c9h
United States Senate, business.employer.employees, m.05fvfz1
Secretary of the United States Senate, government.government_office_or_title.governmental_body_if_any, United States Senate
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.legislature, United States Senate
United States Senate Committee on Appropriations, government.legislative_committee.members, m.030r1l0
m.052lw6q, business.employment_tenure.title, Staff Director for Senate Democratic Leadership Committee
President pro tempore of the United States Senate, government.government_office_or_title.office_holders, m.04mmcc8
United States Senate Committee on the Judiciary, government.legislative_committee.members, m.02_x99b
United States Senate, business.employer.employees, m.04hzyg9
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.030r1gh
United States Senate Committee on Armed Services, government.legislative_committee.members, m.030qmtg
Assistant Minority Leader of the United States Senate, common.topic.notable_for, g.125f9cfv0
United States Senate, visual_art.art_owner.artworks_owned, m.09ryl3c
United States Senate Committee on Foreign Relations, common.topic.notable_for, g.1257s26y1
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.05nls2f
Counsel, Subcommittee on Constitutional Amendments, U.S. Senate Judiciary Committee, business.job_title.people_with_this_title, m.04kq01t
United States Senate, business.employer.employees, m.07sgqm6
United States Senate Select Committee on Intelligence, government.legislative_committee.members, m.030qnd2
m.030r1g_, government.legislative_committee_membership.committee, United States Senate Committee on Rules and Administration
m.04mmcc8, government.government_position_held.governmental_body, United States Senate
United States Senate majority leader, government.government_office_or_title.office_holders, m.0k1bgw_
President pro tempore of the United States Senate, government.government_office_or_title.office_holders, m.0nbz0_p
Secretary of the United States Senate, common.topic.notable_types, Government Office or Title
m.0nbz2xd, government.government_position_held.office_position_or_title, President pro tempore of the United States Senate
United States Senate Select Committee on Intelligence, government.legislative_committee.members, m.02_wsld
Staff Director for Senate Democratic Leadership Committee, business.job_title.people_with_this_title, m.052lw6q
United States Senate Committee on the Budget, government.legislative_committee.members, m.02_wtpc
United States Senate, business.employer.employees, m.05ft8r7
United States Senate Committee on Rules and Administration, government.legislative_committee.legislature, United States Senate
United States Senator, base.descriptive_names.names.descriptive_name, m.01011vbp
United States Senate, business.employer.employees, m.04fzfcy
m.052jk8c, government.government_position_held.office_position_or_title, United States Senate majority leader
United States Senate Select Committee on Intelligence, business.employer.employees, m.0g7mwvd
United States Senate, business.employer.employees, m.0514c9v
The journal of the Senate, including the Journal of the Executive proceedings of the Senate, common.topic.notable_types, Book
United States Senate, government.governmental_body.offices_positions, Assistant Majority Leader of the United States Senate
United States Senate majority leader, government.government_office_or_title.office_holders, m.052jk8v
United States Senate, base.schemastaging.context_name.pronunciation, g.125_mp915
m.052jk8c, government.government_position_held.governmental_body, United States Senate
United States Senate, business.employer.employees, m.052lw71
m.052jk2b, government.government_position_held.governmental_body, United States Senate
United States Senator, base.descriptive_names.names.descriptive_name, m.01011vcr
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh3v
United States Senate, government.governmental_body.offices_positions, President pro tempore of the United States Senate
United States Senate, business.employer.employees, m.046w5m0
m.010131jp, business.employment_tenure.company, United States Senate Committee on the Judiciary
United States Senate Committee on Finance, government.legislative_committee.members, m.052jjnb
President pro tempore of the United States Senate, government.government_office_or_title.office_holders, m.05nlpmx
United States Senate Committee on the Budget, government.legislative_committee.members, m.030qncb
United States Senate Committee on Rules and Administration, government.legislative_committee.members, m.02_wy7y
United States Senate Committee on Rules and Administration, government.legislative_committee.members, m.030r1g_
United States of America, government.governmental_jurisdiction.government_positions, United States Senator
United States Senate, government.governmental_body.offices_positions, United States Senate majority leader
United States Senate Committee on Rules and Administration, common.topic.article, m.03ftsn
m.05lmm6l, government.legislative_committee_membership.committee, United States Senate Committee on the Judiciary
President pro tempore of the United States Senate, government.government_office_or_title.office_holders, m.09rfdwh
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh59
United States Senate, government.governmental_body.committees, United States Senate Committee on Foreign Relations
United States Senate, business.employer.employees, m.04flfw4
United States Senate majority leader, common.topic.notable_for, g.1259mwpd3
United States Senate Committee on Finance, common.topic.notable_for, g.1258w5mfs
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh37
United States Senate, business.employer.employees, m.04kq01t
m.05k9jtj, government.government_position_held.office_position_or_title, United States Senate minority leader
United States Senate, government.governmental_body.committees, United States Senate Committee on the Judiciary
United States Senate majority leader, government.government_office_or_title.office_holders, m.05k9hxg
United States Senate Committee on the Budget, government.legislative_committee.members, m.07l1637
m.05nlpmx, government.government_position_held.governmental_body, United States Senate
United States Senate, business.employer.employees, m.04hzty7
United States Senate Page, common.topic.notable_for, g.125g6_9j_
m.06ybx76, business.employment_tenure.company, United States Senate
m.05k9hxg, government.government_position_held.governmental_body, United States Senate
United States Senate minority leader, government.government_office_or_title.governmental_body_if_any, United States Senate
Assistant Majority Leader of the United States Senate, common.topic.notable_for, g.1258r1fl3
United States Senate Select Committee on Intelligence, government.legislative_committee.members, m.030qq4z
United States Senate Committee on Appropriations, government.legislative_committee.members, m.02_wtnq
United States Senate Committee on Finance, government.legislative_committee.members, m.02_wk3f
United States Senate Committee on Rules and Administration, common.topic.notable_types, Legislative committee
m.094t_m4, government.government_position_held.office_position_or_title, United States Senate majority leader
United States Senate Committee on Armed Services, government.legislative_committee.members, m.07l163g
United States Senate, business.employer.employees, m.04gcg7z
United States Senate, book.author.works_written, Telephone directory, United States Senate, 1976
United States Senator, common.topic.notable_for, g.1259lv35m
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.02_wk0j
United States Senate Committee on the Judiciary, common.topic.article, m.036ww_
United States Senate, business.employer.employees, m.04flfwk
United States Senate Committee on Armed Services, government.legislative_committee.members, m.02_wpcw
United States Senate Committee on Finance, government.legislative_committee.members, m.02_wjxr
President pro tempore of the United States Senate, common.topic.image, Robert Byrd official portrait
United States Senate, business.employer.employees, m.05g5t9z
United States Senate Committee on Foreign Relations, business.employer.employees, m.0wkflq7
United States Senate Committee on Appropriations, government.legislative_committee.members, m.02_wskm
Assistant Majority Leader of the United States Senate, government.government_office_or_title.governmental_body_if_any, United States Senate
m.052jk8v, government.government_position_held.jurisdiction_of_office, United States of America
United States Senate, book.author.works_written, Tributes to Senator Marlow W. Cook
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.02_ws8n
Governmental body (if position is part of one), owl#inverseOf, Members
United States Senate majority leader, government.government_office_or_title.office_holders, m.094t_m4
United States Senate, business.employer.employees, m.04flgfv
m.05k9hxg, government.government_position_held.office_position_or_title, United States Senate majority leader
United States Senate Committee on the Judiciary, government.legislative_committee.members, m.02_wjw6
United States Senate, business.employer.employees, m.05f1dgk
m.04kq01t, business.employment_tenure.company, United States Senate
m.052jk8m, government.government_position_held.office_position_or_title, United States Senate minority leader
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh2n
m.0k1bgw_, government.government_position_held.jurisdiction_of_office, United States of America
m.05nlpmx, government.government_position_held.jurisdiction_of_office, United States of America
United States Senate, government.governmental_body.offices_positions, United States Senate minority leader
President pro tempore of the United States Senate, base.schemastaging.context_name.pronunciation, g.125_m9mcg
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.02_x991
United States Senate Committee on Foreign Relations, business.employer.employees, m.052jf78
United States Senate, government.governmental_body.committees, United States Senate Committee on Appropriations
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.02_wy7h
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh5k
m.09rfdwh, government.government_position_held.governmental_body, United States Senate
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh24
m.05k9jtj, government.government_position_held.governmental_body, United States Senate
m.0czxqzq, common.webpage.topic, President pro tempore of the United States Senate
United States Senate, base.ontologies.ontology_instance.equivalent_instances, m.07nfzf9
United States Senator, base.descriptive_names.names.descriptive_name, m.01011v8s
United States Congress, government.governmental_body.offices_positions, United States Senator
m.052jk8v, government.government_position_held.governmental_body, United States Senate
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.02_wpd2
United States Senate, base.symbols.symbol_user.symbols, m.063vjb7
United States Senate, government.governmental_body.committees, United States Senate Committee on Armed Services
m.052jk2b, government.government_position_held.office_position_or_title, United States Senate minority leader
United States Senate Committee on Armed Services, government.legislative_committee.members, m.030qq4j
Assistant Minority Leader of the United States Senate, common.topic.notable_types, Government Office or Title
United States Senate Committee on Commerce, Science, and Transportation, common.topic.notable_types, Legislative committee
United States Senate Democratic Whip, government.government_office_or_title.governmental_body_if_any, United States Senate
United States Senate, business.employer.employees, m.052lw6q
United States Senate majority leader, government.government_office_or_title.office_holders, m.052jk8c
m.0chcy29, common.webpage.topic, President pro tempore of the United States Senate
United States Senate, visual_art.art_owner.artworks_owned, m.0bfp2_t
United States Senate, government.governmental_body.committees, United States Senate Watergate Committee
United States Senator, base.descriptive_names.names.descriptive_name, m.0100zlls
United States Senate Committee on Armed Services, government.legislative_committee.members, m.030qq92
United States Senate Committee on Armed Services, government.legislative_committee.legislature, United States Senate
United States Senate Committee on Foreign Relations, government.legislative_committee.legislature, United States Senate
United States Senate minority leader, government.government_office_or_title.office_holders, m.052jk8m
United States Senate, government.governmental_body.committees, United States Senate Committee on the Budget
United States Senate, business.employer.employees, m.06ybx76
United States Senate, business.employer.employees, m.05nmypf
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh3l
United States Senate, government.governmental_body.offices_positions, Secretary of the United States Senate
United States Senate, government.governmental_body.committees, United States Senate Committee on Finance
m.05cvl12, business.employment_tenure.title, Aide to Senator Abourezk
m.02_wskv, government.legislative_committee_membership.committee, United States Senate Committee on Rules and Administration
United States Senate Committee on Rules and Administration, government.legislative_committee.members, m.02_wpdj
United States Senator, base.descriptive_names.names.descriptive_name, m.01011v98
United States Senator, base.descriptive_names.names.descriptive_name, m.01011v5t
United States Senate, film.film_subject.films, Advise & Consent
United States Senate Committee on the Judiciary, common.topic.image, Sonia Sotomayor on first day of confirmation hearings
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.030qnc3
President pro tempore of the United States Senate, common.topic.image, Ppt-seal
United States Senator, common.topic.image, 600px-Senate_Seal.svg.png
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.030qnb3
m.0y5pkhn, government.government_position_held.governmental_body, United States Congress
United States Senate Committee on the Judiciary, government.legislative_committee.legislature, United States Senate
Assistant Majority Leader of the United States Senate, common.topic.notable_types, Government Office or Title
m.05nmypf, business.employment_tenure.title, Counsel to the U.S. Senate Judiciary Committee
United States Senate, business.employer.employees, m.04kbcz_
m.04hzyg9, business.employment_tenure.company, United States Senate
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh42
United States Senate, common.topic.notable_types, Governmental Body
m.04flgfv, business.employment_tenure.title, Chief of Staff, US Senate Committee on Foreign Relations
m.09rfdwh, government.government_position_held.jurisdiction_of_office, United States of America
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.02_x9d3
United States Senate Page, common.topic.notable_types, Government Office or Title
United States Senate Page, government.government_office_or_title.governmental_body_if_any, United States Senate
m.0nbz0_p, government.government_position_held.office_position_or_title, President pro tempore of the United States Senate
President pro tempore of the United States Senate, government.government_office_or_title.office_holders, m.0nbz2xd
m.0nbz2xd, government.government_position_held.jurisdiction_of_office, United States of America
United States Senate Committee on Commerce, Science, and Transportation, government.legislative_committee.members, m.02_wjxj
United States Senate Committee on Armed Services, common.topic.notable_for, g.125h43b3x
United States Senate Committee on the Judiciary, common.topic.notable_for, g.125dr6fd0
United States Senate Committee on Appropriations, government.legislative_committee.legislature, United States Senate
United States Senate, business.employer.employees, m.05cvl12
United States Senate Page, common.topic.image, Vice Pres
m.094t_m4, government.government_position_held.governmental_body, United States Senate
United States Senate Committee on Armed Services, common.topic.notable_types, Legislative committee
m.05gx3_2, government.government_position_held.governmental_body, United States Congress
United States Senate Committee on Rules and Administration, government.legislative_committee.members, m.030qq4r
United States Senate Democratic Whip, common.topic.article, m.03ghxr
m.030qq4r, government.legislative_committee_membership.committee, United States Senate Committee on Rules and Administration
United States Senate Page, common.topic.article, m.07_5xn
Deputy Staff Director, Senate Finance Committee, business.job_title.people_with_this_title, m.04c_jd2
United States Senate Committee on the Judiciary, government.legislative_committee.members, m.02_wk3n
President pro tempore of the United States Senate, common.topic.webpage, m.0czxqzq
The journal of the Senate, including the Journal of the Executive proceedings of the Senate, common.topic.notable_for, g.125fxs37z
Deputy Counsel to Senate Majority Leader Robert Dole, business.job_title.people_with_this_title, m.0514c9h
United States Senate, visual_art.art_owner.artworks_owned, m.09ryl37
m.05nlpmx, government.government_position_held.office_position_or_title, President pro tempore of the United States Senate
United States Senate, government.governmental_body.jurisdiction, United States of America
United States Senate Committee on the Judiciary, government.legislative_committee.members, m.02_wsl5
m.0k1bgw_, government.government_position_held.governmental_body, United States Senate
United States Senate, business.employer.employees, m.012d_blh
United States Congress, government.governmental_body.offices_positions, Speaker of the United States House of Representatives
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.03h9hnx
United States Senate Committee on Commerce, Science, and Transportation, common.topic.notable_for, g.125brlx5j
United States Senate Committee on Rules and Administration, common.topic.notable_for, g.12588_zqv
United States Senate Committee on the Budget, government.legislative_committee.legislature, United States Senate
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.03h9hnh
President pro tempore of the United States Senate, common.topic.notable_types, Government Office or Title
m.04c_jd2, business.employment_tenure.title, Deputy Staff Director, Senate Finance Committee
m.0nbz0_p, government.government_position_held.jurisdiction_of_office, United States of America
President pro tempore of the United States Senate, common.topic.notable_for, g.125h3jrnr
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United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.04dhh4g
United States Senator, fictional_universe.character_occupation.characters_with_this_occupation, Nathan Petrelli
United States Senate, business.employer.employees, m.0g69h84
United States Senate Committee on Foreign Relations, government.legislative_committee.members, m.02_wjxz
United States Senate, book.author.works_written, Renovated butter
President pro tempore of the United States Senate, common.topic.article, m.0d5jj
United States Senate Committee on Appropriations, government.legislative_committee.members, m.05nls25
United States Senate, business.employer.employees, m.04c_jcw
United States Senate, government.governmental_body.offices_positions, United States Senate Democratic Whip

Answer: Chief of staff