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 office, also held by a member of the Maine House of Representatives, did James K. Polk hold before he was president? 
Knowledge Triplets: Maine House of Representatives, government.governmental_body.members, m.0130m7zm
During his presidency, the U.S. Naval Academy was established at Annapolis and the Smithsonian Institution was founded., base.kwebbase.kwsentence.next_sentence, When he took office, Polk had announced he would not serve a second term.
m.0tksfc9, government.government_position_held.office_position_or_title, United States Representative
United States presidential election, 1844, common.topic.image, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0whk0k4
James K. Polk, government.political_appointer.appointees, m.08v_t28
Mike Ward, people.person.nationality, United States of America
James K. Polk, book.book_subject.works, Polk: The Diary of an American President, 1845-1849
m.0130m3rq, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130l9n0
m.0130lkss, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, common.image.size, m.03tdw8g
m.0130j_cw, government.government_position_held.governmental_body, Maine House of Representatives
m.0130kxzs, government.government_position_held.governmental_body, Maine House of Representatives
m.0130kc7w, government.government_position_held.governmental_body, Maine House of Representatives
m.0130j_92, government.government_position_held.governmental_body, Maine House of Representatives
President, type.type.expected_by, US President
m.010r1w1b, government.government_position_held.jurisdiction_of_office, Maine
m.0tl5d1f, government.government_position_held.jurisdiction_of_office, Maine
james knox polk appointed nathaniel hawthorne, base.kwebbase.kwconnection.subject, James K. Polk
James K. Polk 1845 presidential inauguration, base.inaugurations.inauguration.president, James K. Polk
When he took office, Polk had announced he would not serve a second term., base.kwebbase.kwsentence.kwtopic, James K. Polk
James K. Polk Presidential Campaign, 1844, government.election_campaign.election, United States presidential election, 1844
Maine House of Representatives, government.governmental_body.members, m.0_73v__
James K. Polk 1845 presidential inauguration, time.event.locations, United States Capitol
Maine House of Representatives, government.governmental_body.members, m.0130kqrj
James K. Polk, people.person.profession, Politician
m.0hn42fb, people.appointment.appointed_by, James K. Polk
m.0whz5t_, government.government_position_held.governmental_body, Maine House of Representatives
m.0130lz6k, government.government_position_held.governmental_body, Maine House of Representatives
m.011m5tvm, government.government_position_held.governmental_body, Maine House of Representatives
Correspondence of James K. Polk, common.topic.notable_for, g.125bty4pj
m.0_73v__, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, book.author.works_written, Polk: The Diary of an American President, 1845-1849
Maine Legislature, government.governmental_body.component_bodies, Maine House of Representatives
James K. Polk, government.politician.party, m.03gjg4v
James K. Polk, common.topic.image, Picture 12.png
Maine House of Representatives, government.governmental_body.members, m.0130kstk
Maine House of Representatives, government.governmental_body.members, m.0130j_cw
Maine House of Representatives, government.governmental_body.members, m.012gfz8h
m.0130k9sw, government.government_position_held.governmental_body, Maine House of Representatives
m.0130lbg9, government.government_position_held.governmental_body, Maine House of Representatives
Before he took office, Congress voted to annex Texas, a move favored by most Democrats., base.kwebbase.kwsentence.kwtopic, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130m4qx
James K. Polk, base.kwebbase.kwtopic.has_sentences, At 28, Polk was elected to the North Carolina State House of Representatives, where he served two years.
The debating chamber of the Maine House of Representatives inside the State House, common.image.appears_in_topic_gallery, Maine House of Representatives
James K. Polk 1845 presidential inauguration, common.topic.notable_types, Event
James K. Polk, government.politician.government_positions_held, m.04j60kc
James K. Polk Presidential Campaign, 1844, government.election_campaign.candidate, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130lw1f
James K. Polk, common.topic.notable_types, US President
m.0130m4jb, government.government_position_held.governmental_body, Maine House of Representatives
m.0130m521, government.government_position_held.governmental_body, Maine House of Representatives
m.0130l9n0, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130jsh6
Maine House of Representatives, government.governmental_body.members, m.0zs5d0n
James K. Polk, base.kwebbase.kwtopic.connections_from, james knox polk passed over for john quincy adams
In 1835, Jackson rewarded Polk by making him Speaker of the House., base.kwebbase.kwsentence.dates, m.0c0z7b7
United States of America, government.governmental_jurisdiction.government_positions, United States Representative
m.0w5k3pv, government.government_position_held.jurisdiction_of_office, Maine
Maine, government.governmental_jurisdiction.government_bodies, Maine House of Representatives
m.0130l6f_, government.government_position_held.governmental_body, Maine House of Representatives
Maine Legislature, government.governmental_body.members, m.010r1w1b
Maine House of Representatives, government.governmental_body.members, m.0tksfc9
James K. Polk, government.politician.government_positions_held, m.04j60kc
Maine House of Representatives, government.governmental_body.members, m.0130k9sw
Maine House of Representatives, government.governmental_body.members, m.0130l369
m.0130jsh6, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130kqr6
m.0130k0_m, government.government_position_held.governmental_body, Maine House of Representatives
George M. Dallas, government.us_vice_president.to_president, James K. Polk
James K. Polk, people.person.profession, Politician
m.0w5k3pv, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, common.image.size, m.02g0521
james knox polk passed over for john quincy adams, base.kwebbase.kwconnection.subject, James K. Polk
James K. Polk, government.politician.government_positions_held, m.0944j8_
m.0130kqrj, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, government.government_position_held.office_holder, m.04j60kh
Maine House of Representatives, common.topic.image, The debating chamber of the Maine House of Representatives inside the State House
James K. Polk, people.person.places_lived, m.03phtbg
President, fictional_universe.fictional_character.occupation, Laura Roslin
m.0tks8hb, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, base.kwebbase.kwtopic.has_sentences, This did not satisfy Polk.
James K. Polk, base.kwebbase.kwtopic.has_sentences, He appointed Perry to naval post,  and Sholes as a postmaster He backed Santa Anna as Mexican President.
Maine House of Representatives, government.governmental_body.members, m.0w45t_1
Maine House of Representatives, government.governmental_body.members, m.0vsk0qc
m.0_73v__, government.government_position_held.jurisdiction_of_office, Maine
Maine House of Representatives, common.topic.notable_types, Governmental Body
m.0131txc8, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130lgch
m.0130jxr6, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, people.person.religion, Methodism
m.0944j8_, government.government_position_held.office_holder, James K. Polk
James K. Polk 1845 presidential inauguration, common.topic.image, Polk inauguration London News
m.052bmn7, common.webpage.topic, Maine House of Representatives
James K. Polk, common.image.appears_in_topic_gallery, James K. Polk
m.0wl3h75, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, book.book_subject.works, Polk: The Man Who Transformed the Presidency and America
At 28, Polk was elected to the North Carolina State House of Representatives, where he served two years., base.kwebbase.kwsentence.kwtopic, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130k7sl
James K. Polk, people.person.religion, Presbyterianism
Maine House of Representatives, government.governmental_body.members, m.0130kxzs
James K. Polk, people.person.ethnicity, White people
Maine House of Representatives, government.governmental_body.members, g.11b7w282gr
Maine House of Representatives, government.governmental_body.members, m.0131txc8
Maine House of Representatives, government.governmental_body.members, m.0wkkkv4
Maine House of Representatives, government.governmental_body.members, m.0130m3rq
m.0130m7zm, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, people.person.nationality, United States of America
Maine Legislature, common.topic.article, m.0271y2
Maine House of Representatives, government.governmental_body.members, m.0wkd1cx
m.0w8kscv, government.government_position_held.jurisdiction_of_office, Maine
Maine House of Representatives, government.governmental_body.members, m.0130kfyj
James K. Polk, people.person.gender, Male
m.012j0rn2, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0sx9v55
Maine House of Representatives, government.governmental_body.members, m.0130l0yd
m.0zs70hg, government.government_position_held.governmental_body, Maine House of Representatives
m.0tksfc9, government.government_position_held.jurisdiction_of_office, Maine
James K. Polk 1845 presidential inauguration, common.topic.notable_for, g.1257k6mw1
James K. Polk, base.kwebbase.kwtopic.connections_to, nathaniel hawthorne appointed by james knox polk
m.0130lgch, government.government_position_held.governmental_body, Maine House of Representatives
Polk: The Diary of an American President, 1845-1849, book.written_work.author, James K. Polk
m.04j5sk8, government.government_position_held.office_holder, James K. Polk
James K. Polk, people.person.ethnicity, Scottish American
President, government.government_position_held.basic_title, m.04469y8
James K. Polk, base.kwebbase.kwtopic.has_sentences, In 1835, Jackson rewarded Polk by making him Speaker of the House.
James K. Polk, people.person.profession, Farmer
Maine House of Representatives, common.topic.notable_for, g.1255fs3fd
m.0130m4qx, government.government_position_held.governmental_body, Maine House of Representatives
james knox polk appointed matthew calbraith perry, base.kwebbase.kwconnection.subject, James K. Polk
James K. Polk, government.politician.election_campaigns, James K. Polk Presidential Campaign, 1844
United States presidential election, 1844, government.election.campaigns, James K. Polk Presidential Campaign, 1844
James K. Polk, government.politician.government_positions_held, m.04469y8
m.0whk0k4, government.government_position_held.governmental_body, Maine House of Representatives
Four years later, when Jackson became President, Polk worked tirelessly on Jackson's program., base.kwebbase.kwsentence.kwtopic, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130k81q
James K. Polk Presidential Campaign, 1844, government.election_campaign.party, Democratic Party
Maine House of Representatives, government.governmental_body.members, m.0130m5cx
m.0znm7j_, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0zs70hg
Maine House of Representatives, government.governmental_body.members, m.012j0rn2
m.0130k2z3, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk 1845 presidential inauguration, base.culturalevent.event.entity_involved, James K. Polk
President, common.topic.subjects, Mike Ward
Maine House of Representatives, government.governmental_body.members, m.0130k0_m
James K. Polk, government.us_president.vice_president, George M. Dallas
Maine House of Representatives, government.governmental_body.members, m.0130lcft
Maine House of Representatives, government.governmental_body.members, m.0130k2z3
m.03gjg4v, government.political_party_tenure.politician, James K. Polk
m.04j60kc, government.government_position_held.office_holder, James K. Polk
Maine House of Representatives, government.governmental_body.members, g.11b7w28n0q
During his presidency, the U.S. Naval Academy was established at Annapolis and the Smithsonian Institution was founded., base.kwebbase.kwsentence.kwtopic, James K. Polk
m.0130kzrr, government.government_position_held.governmental_body, Maine House of Representatives
m.0130lltk, government.government_position_held.governmental_body, Maine House of Representatives
m.0gb20sn, common.webpage.topic, Maine House of Representatives
James K. Polk 1845 presidential inauguration, time.event.locations, Washington, D.C.
m.04469y8, government.government_position_held.office_holder, James K. Polk
Maine House of Representatives, common.topic.webpage, m.0gb20sn
Maine House of Representatives, government.governmental_body.members, m.0tks8hb
James K. Polk, people.person.nationality, United States of America
m.012n2xqg, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk Presidential Campaign, 1844, common.topic.notable_for, g.1257kpk96
m.0130k81q, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130lbg9
United States presidential election, 1844, government.election.winner, James K. Polk
m.0130k5nw, government.government_position_held.governmental_body, Maine House of Representatives
Politician, base.onephylogeny.type_of_thing.things_of_this_type, United States Representative
James K. Polk, base.kwebbase.kwtopic.connections_to, matthew calbraith perry appointed by james knox polk
m.0130kzqp, government.government_position_held.governmental_body, Maine House of Representatives
m.012gfz8h, government.government_position_held.governmental_body, Maine House of Representatives
m.0_6sy47, government.government_position_held.governmental_body, Maine House of Representatives
He appointed Perry to naval post,  and Sholes as a postmaster He backed Santa Anna as Mexican President., base.kwebbase.kwsentence.kwtopic, James K. Polk
James K. Polk, common.topic.image, James K. Polk
Maine House of Representatives, government.governmental_body.jurisdiction, Maine
m.0sx9v55, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, common.topic.webpage, m.052bmn7
Maine House of Representatives, government.governmental_body.members, m.0130kzrr
james knox polk appointed christopher latham sholes, base.kwebbase.kwconnection.subject, James K. Polk
This did not satisfy Polk., base.kwebbase.kwsentence.kwtopic, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130k5nw
m.0130lcft, government.government_position_held.governmental_body, Maine House of Representatives
President of the United States, government.government_office_or_title.jurisdiction, United States of America
James K. Polk, people.person.profession, Lawyer
m.0w8kscv, government.government_position_held.governmental_body, Maine House of Representatives
m.04j60kc, government.government_position_held.office_position_or_title, United States Representative
m.0130k284, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.011m5tvm
Polk: The Diary of an American President, 1845-1849, book.written_work.subjects, James K. Polk
m.0130jzt5, government.government_position_held.governmental_body, Maine House of Representatives
m.0130l5df, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0_6sy47
Maine House of Representatives, government.governmental_body.members, m.0130m9d5
m.010r1w1b, government.government_position_held.governmental_body, Maine Legislature
Maine House of Representatives, government.governmental_body.members, m.0130kc7w
Maine House of Representatives, government.governmental_body.members, m.0130jxr6
Maine House of Representatives, government.governmental_body.members, m.0130m521
m.0tl5d1f, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0tl5d1f
m.0130k7sl, government.government_position_held.governmental_body, Maine House of Representatives
m.0zs5hcn, government.government_position_held.governmental_body, Maine House of Representatives
james knox polk appointed christopher latham sholes, base.kwebbase.kwconnection.sentence, He appointed Perry to naval post,  and Sholes as a postmaster He backed Santa Anna as Mexican President.
Maine House of Representatives, government.governmental_body.members, m.0130lltk
President, common.topic.subject_of, MA$TADON
Franklin Pierce, base.kwebbase.kwtopic.has_sentences, President James Polk made Pierce Federal District Attorney, after which he became prominent in local politics.
Maine House of Representatives, government.governmental_body.members, m.0130m9hz
US President, freebase.type_hints.included_types, Politician
m.04kq1r9, government.government_position_held.appointed_by, James K. Polk
Polk added extensive and valuable territory to the United States and restored the independence of the Treasury., base.kwebbase.kwsentence.kwtopic, James K. Polk
Maine House of Representatives, common.topic.article, m.050zt7
Maine House of Representatives, government.governmental_body.members, m.0zs5hcn
Maine House of Representatives, government.governmental_body.members, m.0129853b
James K. Polk, base.kwebbase.kwtopic.connections_to, franklin pierce appointed by james knox polk
James K. Polk 1845 presidential inauguration, base.inaugurations.inauguration.inaugural_address, Inaugural Address of James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130lkss
Maine House of Representatives, government.governmental_body.members, m.0130k284
Maine Legislature, common.topic.webpage, m.03lhz3f
Maine House of Representatives, government.governmental_body.members, m.012n2xqg
m.04469y8, government.government_position_held.jurisdiction_of_office, United States of America
James K. Polk, base.inaugurations.inauguration_speaker.inauguration, James K. Polk 1845 presidential inauguration
m.0zs70hg, government.government_position_held.jurisdiction_of_office, Maine
James K. Polk, base.kwebbase.kwtopic.has_sentences, Before he took office, Congress voted to annex Texas, a move favored by most Democrats.
m.0130m9hz, government.government_position_held.governmental_body, Maine House of Representatives
m.0130m9d5, government.government_position_held.governmental_body, Maine House of Representatives
m.0_6sy47, government.government_position_held.jurisdiction_of_office, Maine
m.0130lw1f, government.government_position_held.governmental_body, Maine House of Representatives
Maine Legislature, common.topic.notable_for, g.125512dn7
m.0130l369, government.government_position_held.governmental_body, Maine House of Representatives
franklin pierce appointed by james knox polk, base.kwebbase.kwconnection.sentence, President James Polk made Pierce Federal District Attorney, after which he became prominent in local politics.
Maine House of Representatives, government.governmental_body.members, m.0130lfdb
In 1835, Jackson rewarded Polk by making him Speaker of the House., base.kwebbase.kwsentence.kwtopic, James K. Polk
m.0wkkkv4, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0znm7j_
m.08v_t28, government.government_position_held.appointed_by, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130l6f_
James K. Polk, people.person.parents, Samuel Polk
m.0130lfdb, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130lz6k
Maine House of Representatives, government.governmental_body.members, m.0130jzt5
The debating chamber of the Maine House of Representatives inside the State House, common.image.size, m.02cc71c
m.011m5tvm, government.government_position_held.jurisdiction_of_office, Maine
m.0130kqr6, government.government_position_held.governmental_body, Maine House of Representatives
m.03lhz3f, common.webpage.topic, Maine Legislature
m.04j60kh, government.government_position_held.office_position_or_title, United States Representative
James K. Polk, common.image.appears_in_topic_gallery, United States presidential election, 1844
James K. Polk 1845 presidential inauguration, common.topic.article, m.05c3n6d
m.0w45t_1, government.government_position_held.governmental_body, Maine House of Representatives
When the first American soldiers were killed, Polk got Congressional support for declaring war., base.kwebbase.kwsentence.kwtopic, James K. Polk
Maine House of Representatives, government.governmental_body.members, m.0130lp8r
m.0130m7yw, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130m4jb
m.0hn416l, people.appointment.appointed_by, James K. Polk
m.0_72h6w, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, base.kwebbase.kwtopic.has_sentences, When he took office, Polk had announced he would not serve a second term.
m.0wkd1cx, government.government_position_held.governmental_body, Maine House of Representatives
james knox polk appointed matthew calbraith perry, base.kwebbase.kwconnection.sentence, He appointed Perry to naval post,  and Sholes as a postmaster He backed Santa Anna as Mexican President.
James K. Polk, base.kwebbase.kwtopic.has_sentences, During his presidency, the U.S. Naval Academy was established at Annapolis and the Smithsonian Institution was founded.
James K. Polk, people.appointer.appointment_made, m.0hn416l
m.0130kstk, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.body_this_is_a_component_of, Maine Legislature
m.0130kfyj, government.government_position_held.governmental_body, Maine House of Representatives
m.04j60kh, government.government_position_held.office_holder, James K. Polk
James K. Polk, people.person.education, m.03l5_lg
James K. Polk, common.topic.article, m.042fc
James K. Polk, base.kwebbase.kwtopic.has_sentences, When the first American soldiers were killed, Polk got Congressional support for declaring war.
James K. Polk Presidential Campaign, 1844, common.topic.notable_types, Election campaign
Maine House of Representatives, government.governmental_body.members, m.0130j_92
m.0130m5cx, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0130m7yw
Maine House of Representatives, government.governmental_body.members, m.0wl3h75
Maine House of Representatives, government.governmental_body.members, m.0130kzqp
m.0vsk0qc, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0w5k3pv
James K. Polk, base.kwebbase.kwtopic.has_sentences, Four years later, when Jackson became President, Polk worked tirelessly on Jackson's program.
James K. Polk, people.person.ethnicity, Scotch-Irish American
m.0zs5d0n, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.governmental_body.members, m.0_72h6w
m.0130lp8r, government.government_position_held.governmental_body, Maine House of Representatives
Maine House of Representatives, government.government_position_held.governmental_body, m.0tksfc9
Maine House of Representatives, government.governmental_body.members, m.0130l5df
Maine House of Representatives, government.governmental_body.members, m.0whz5t_
m.0tksfc9, government.government_position_held.governmental_body, Maine House of Representatives
President, government.government_office_or_title.category, President of the United States
James K. Polk, government.politician.government_positions_held, m.04j60kh
James K. Polk, people.appointer.appointment_made, m.0hn42fb
Maine House of Representatives, government.governmental_body.members, m.0w8kscv
Laura Roslin, fictional_universe.fictional_character.occupation, Politician
James K. Polk, people.person.spouse_s, m.0j4k7n3
James K. Polk, base.kwebbase.kwtopic.has_sentences, Polk added extensive and valuable territory to the United States and restored the independence of the Treasury.
When he took office, Polk had announced he would not serve a second term., base.kwebbase.kwsentence.previous_sentence, During his presidency, the U.S. Naval Academy was established at Annapolis and the Smithsonian Institution was founded.
m.0129853b, government.government_position_held.governmental_body, Maine House of Representatives
m.0130l0yd, government.government_position_held.governmental_body, Maine House of Representatives
James K. Polk, people.person.sibling_s, m.0w4g5mr
James K. Polk, government.politician.government_positions_held, m.04j5sk8
MA$TADON, people.person.nationality, United States of America
James K. Polk, common.topic.notable_for, g.1258gz3ht
James K. Polk, government.political_appointer.appointees, m.04kq1r9
Maine House of Representatives, government.governmental_body.members, g.11b7w2899t
m.0_72h6w, government.government_position_held.jurisdiction_of_office, Maine

Answer: United States Representative