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: Which Virginia Senator from 2013 held their government position until February 23, 1988? 
Knowledge Triplets: United States Senate, government.governmental_body.jurisdiction, United States of America
m.09s62zj, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62v6
m.09s62vv, government.government_position_held.district_represented, Virginia
m.09s62sh, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09pvb56
m.09s63pc, government.government_position_held.district_represented, Virginia
m.04j5vfw, government.government_position_held.district_represented, Virginia
m.09s633h, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09s62r6
m.0r99pcd, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09ryjgr
m.09s62q6, government.government_position_held.office_position_or_title, United States Senator
m.04g7cmm, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62z0
Virginia, government.political_district.representatives, m.09ryj3c
Virginia, government.political_district.representatives, m.09s632t
m.09pvmbr, government.government_position_held.office_holder, Richard Henry Lee
m.0r99pcd, government.government_position_held.district_represented, Virginia
m.052jk2b, government.government_position_held.governmental_body, United States Senate
m.09s63mp, government.government_position_held.basic_title, Senator
m.0hz7b6m, government.government_position_held.office_position_or_title, Secretary of the Commonwealth of Virginia
m.09s63sp, government.government_position_held.district_represented, Virginia
m.09s646c, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62kf
m.09s64nd, government.government_position_held.basic_title, Senator
m.09s62z0, government.government_position_held.district_represented, Virginia
m.09pvn_7, government.government_position_held.office_holder, James Monroe
m.052jk8c, government.government_position_held.governmental_body, United States Senate
m.05kfcw0, government.government_position_held.district_represented, Virginia
m.0nbz1t4, government.government_position_held.office_position_or_title, United States Senator
United States Senate elections, 2008, government.general_election.contests, United States Senate election in Virginia, 2008
Virginia, government.political_district.representatives, m.09qpvwz
Secretary of the Commonwealth of Virginia, government.government_office_or_title.office_holders, m.0_lxzwz
Virginia, government.political_district.representatives, m.09s62vv
m.09qpvwz, government.government_position_held.district_represented, Virginia
m.0n5xv51, government.government_position_held.basic_title, Senator
m.09rfksb, government.government_position_held.office_holder, Henry Tazewell
Virginia, government.political_district.representatives, m.09s633h
m.09s62r6, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0r99pcd
Virginia, government.political_district.representatives, m.04j5vfw
m.04g7cb8, government.government_position_held.district_represented, Virginia
m.09pvqqz, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0nbxym9
m.04g7cnk, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0nbz1w5
m.09s65j4, government.government_position_held.governmental_body, United States Senate
Virginia, government.political_district.representatives, m.09ryj64
m.05kfcw0, government.government_position_held.office_position_or_title, United States Senator
m.09s631z, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62_h
m.09s65j4, government.government_position_held.office_position_or_title, United States Senator
m.09ryj37, government.government_position_held.district_represented, Virginia
m.09s62wg, government.government_position_held.basic_title, Senator
m.09s632t, government.government_position_held.office_position_or_title, United States Senator
m.09s62z0, government.government_position_held.basic_title, Senator
m.09s646c, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.0mtk6wd
Senate of Virginia, common.topic.webpage, m.06wh18l
Virginia, government.political_district.representatives, m.09rfksb
Secretary of the Commonwealth of Virginia, government.government_office_or_title.category, Secretary of state
m.09pvmbr, government.government_position_held.basic_title, Senator
United States Senate election in Virginia, 2008, common.topic.notable_for, g.1258t62m9
m.0nbz1t4, government.government_position_held.basic_title, Senator
m.0nbxym9, government.government_position_held.office_holder, William Cabell Rives
m.09s62kf, government.government_position_held.district_represented, Virginia
m.052jk8v, government.government_position_held.governmental_body, United States Senate
Secretary of the Commonwealth of Virginia, common.topic.notable_types, Government Office or Title
Virginia, government.political_district.representatives, m.05kfcw0
m.0n4qkb3, government.government_position_held.basic_title, Senator
m.09s64nd, government.government_position_held.district_represented, Virginia
m.09s62v6, government.government_position_held.district_represented, Virginia
m.09pvb56, government.government_position_held.district_represented, Virginia
m.09s62sh, government.government_position_held.basic_title, Senator
m.09s62sh, government.government_position_held.governmental_body, United States Senate
m.0n997tk, government.government_position_held.basic_title, Senator
Secretary of the Commonwealth of Virginia, government.government_office_or_title.office_holders, m.0hz7b6m
m.0nbx2t1, government.government_position_held.basic_title, Senator
m.09s63nm, government.government_position_held.district_represented, Virginia
Secretary of the Commonwealth of Virginia, government.government_office_or_title.jurisdiction, Virginia
m.09s62yp, government.government_position_held.basic_title, Senator
Senate of Virginia, common.topic.notable_types, Governmental Body
m.09s62tf, government.government_position_held.district_represented, Virginia
United States Senate election in Virginia, 2008, common.topic.article, m.026gnts
Virginia, government.political_district.representatives, m.04g7cn7
m.0nbz1t4, government.government_position_held.district_represented, Virginia
m.0nbz1t4, government.government_position_held.office_holder, James Murray Mason
m.09s646c, government.government_position_held.basic_title, Senator
m.0n9d329, government.government_position_held.district_represented, Virginia
m.0nbytgy, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s64nd
m.09s62xk, government.government_position_held.basic_title, Senator
m.09s64s4, government.government_position_held.basic_title, Senator
m.09s62yp, government.government_position_held.governmental_body, United States Senate
m.09s62sh, government.government_position_held.district_represented, Virginia
m.05kfcm1, government.government_position_held.office_position_or_title, United States Senator
m.09s62zj, government.government_position_held.basic_title, Senator
m.0ncr138, government.government_position_held.governmental_body, United States Senate
Virginia, government.political_district.representatives, m.05kfcw0
Virginia, government.political_district.representatives, m.09ryjgm
Virginia, government.political_district.representatives, m.09s646c
m.09s632t, government.government_position_held.district_represented, Virginia
Senate of Virginia, common.topic.article, m.053fcb
m.0n5xv51, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09s62q6
m.09rfkp2, government.government_position_held.governmental_body, United States Senate
m.0_lxzwz, government.government_position_held.jurisdiction_of_office, Virginia
m.09s62v6, government.government_position_held.office_position_or_title, United States Senator
m.09s63rr, government.government_position_held.basic_title, Senator
Virginia House of Delegates, government.governmental_body.jurisdiction, Virginia
m.09rfkp2, government.government_position_held.basic_title, Senator
m.09pvn_7, government.government_position_held.basic_title, Senator
m.0n99vpk, government.government_position_held.basic_title, Senator
m.09s63nm, government.government_position_held.office_position_or_title, United States Senator
United States of America, people.person.nationality, Jim Webb
m.0znyy7g, government.government_position_held.district_represented, Virginia
m.09ryjgr, government.government_position_held.office_holder, Peyton Randolph
Virginia, government.political_district.representatives, m.09s63wl
Senate of Virginia, government.governmental_body.jurisdiction, Virginia
m.09s62q6, government.government_position_held.basic_title, Senator
United States Senate election in Virginia, 2008, government.election.winner, Mark Warner
m.09s62kr, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09s63lt
m.09s62r6, government.government_position_held.governmental_body, United States Senate
m.0n997t6, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09s62tf
m.09rfdwh, government.government_position_held.governmental_body, United States Senate
m.09pvmbr, government.government_position_held.governmental_body, United States Senate
m.09pvn_7, government.government_position_held.office_position_or_title, United States Senator
m.09s63rr, government.government_position_held.office_position_or_title, United States Senator
m.09ryjgr, government.government_position_held.district_represented, Virginia
m.09pvqqz, government.government_position_held.basic_title, Senator
m.09s63rr, government.government_position_held.governmental_body, United States Senate
Senate of Virginia, common.topic.notable_for, g.12597k6gq
m.09s63q3, government.government_position_held.district_represented, Virginia
m.0n4qkb3, government.government_position_held.office_position_or_title, United States Senator
m.09s63lt, government.government_position_held.basic_title, Senator
m.09ryj3c, government.government_position_held.office_holder, Patrick Henry
m.0n997tk, government.government_position_held.office_holder, William Cabell Rives
m.0n9d329, government.government_position_held.office_position_or_title, United States Senator
m.04j5vfw, government.government_position_held.office_position_or_title, United States Senator
m.0n99vpk, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62_z
m.09s63sp, government.government_position_held.basic_title, Senator
Senate of Virginia, common.topic.image, Historic Partisan Makeup of the Virginia State Senate
m.09s63wl, government.government_position_held.office_position_or_title, United States Senator
m.0nbz1w5, government.government_position_held.office_position_or_title, United States Senator
m.09s62_z, government.government_position_held.basic_title, Senator
United States Senate election in Virginia, 2008, government.election.office, United States Senator
Virginia, government.political_district.representatives, m.0n997tk
Virginia, government.political_district.representatives, m.09s631z
Senate of Virginia, government.governmental_body.body_this_is_a_component_of, Virginia General Assembly
m.09s62r_, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09s64y_
Virginia, government.political_district.representatives, m.0n99vpk
Virginia, government.political_district.representatives, m.09s62kr
m.09s64s4, government.government_position_held.district_represented, Virginia
m.09s64y_, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.05kfcm1
m.09ryhs2, government.government_position_held.district_represented, Virginia
m.09s62zj, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09s64s4
m.0mtk6wd, government.government_position_held.basic_title, Senator
m.09s62yp, government.government_position_held.district_represented, Virginia
m.09s64s4, government.government_position_held.governmental_body, United States Senate
m.09s64s4, government.government_position_held.office_position_or_title, United States Senator
m.09s63rr, government.government_position_held.district_represented, Virginia
m.09s633h, government.government_position_held.office_position_or_title, United States Senator
m.09s64nd, government.government_position_held.office_holder, John Randolph of Roanoke
m.0n9d329, government.government_position_held.basic_title, Senator
m.09s63lt, government.government_position_held.office_position_or_title, United States Senator
m.09ryj64, government.government_position_held.district_represented, Virginia
m.09s63wl, government.government_position_held.district_represented, Virginia
m.09s62xk, government.government_position_held.office_position_or_title, United States Senator
m.0n99vpk, government.government_position_held.office_position_or_title, United States Senator
m.09s62_z, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0n4qkb3
m.09pvn_7, government.government_position_held.district_represented, Virginia
m.09s646c, government.government_position_held.governmental_body, United States Senate
m.09rfksb, government.government_position_held.district_represented, Virginia
m.09rfksb, government.government_position_held.basic_title, Senator
m.09s62wg, government.government_position_held.district_represented, Virginia
m.09rfkp2, government.government_position_held.office_position_or_title, United States Senator
m.09s62kr, government.government_position_held.governmental_body, United States Senate
Virginia, government.political_district.representatives, m.04g7cmm
m.09pvb56, government.government_position_held.office_position_or_title, United States Senator
m.0nbz1w5, government.government_position_held.basic_title, Senator
m.09s63pc, government.government_position_held.basic_title, Senator
m.0_lxzwz, government.government_position_held.office_position_or_title, Secretary of the Commonwealth of Virginia
m.0n997t6, government.government_position_held.district_represented, Virginia
United States Senate election in Virginia, 2008, time.event.next_in_series, United States Senate election in Virginia, 2014
m.0n997tk, government.government_position_held.office_position_or_title, United States Senator
m.09s65j4, government.government_position_held.office_holder, Abraham B. Venable
m.0mtk6wd, government.government_position_held.office_position_or_title, United States Senator
m.09s62kf, government.government_position_held.basic_title, Senator
m.09s632t, government.government_position_held.basic_title, Senator
m.09s62yp, government.government_position_held.office_holder, John S. Barbour, Jr.
m.09s62r_, government.government_position_held.basic_title, Senator
m.04g7cn7, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09ryjt0
m.09s62tf, government.government_position_held.office_position_or_title, United States Senator
m.09s62wg, government.government_position_held.governmental_body, United States Senate
m.0n4qkb3, government.government_position_held.office_holder, James Barbour
m.0ncr138, government.government_position_held.basic_title, Senator
m.09s631z, government.government_position_held.basic_title, Senator
m.0n997tk, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62r_
m.0n4qkb3, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62xk
Virginia General Assembly, government.governmental_body.component_bodies, Senate of Virginia
Virginia, government.political_district.representatives, m.0znyy7g
Virginia, government.political_district.representatives, m.0nbx2t1
Virginia, government.political_district.representatives, m.0nbytgy
m.09ryjgm, government.government_position_held.district_represented, Virginia
m.0nbxym9, government.government_position_held.basic_title, Senator
m.05kfcm1, government.government_position_held.district_represented, Virginia
Virginia, base.aareas.schema.administrative_area.administrative_parent, United States of America
m.09rfksb, government.government_position_held.office_position_or_title, United States Senator
m.09s62v6, government.government_position_held.basic_title, Senator
m.09s62wg, government.government_position_held.office_position_or_title, United States Senator
m.05kfcw0, government.government_position_held.basic_title, Senator
m.09pvmbr, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s62zj
m.09s62r_, government.government_position_held.office_holder, William L. Scott
m.09s62kf, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.04g7cnk
m.09s63mp, government.government_position_held.office_position_or_title, United States Senator
m.0r99pcd, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09pvmbr
m.0nbxym9, government.government_position_held.office_position_or_title, United States Senator
m.058__ny, government.government_position_held.district_represented, Virginia
m.09s62r_, government.government_position_held.district_represented, Virginia
m.09s63l2, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09s63l2
m.05kfcm1, government.government_position_held.basic_title, Senator
m.09s633h, government.government_position_held.governmental_body, United States Senate
Virginia, government.political_district.representatives, m.04g7cb8
Virginia, government.political_district.representatives, m.09s63mp
Virginia, government.political_district.representatives, m.09s65j4
m.09s62_h, government.government_position_held.district_represented, Virginia
m.09s63lt, government.government_position_held.governmental_body, United States Senate
m.09pvb56, government.government_position_held.basic_title, Senator
United States Senate election in Virginia, 2008, government.election.general_election, United States Senate elections, 2008
Senate of Virginia, common.topic.image, Seal of the Senate of Virginia
m.09s63mp, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0n9d329
m.09qpvwz, government.government_position_held.basic_title, Senator
m.09s63wl, government.government_position_held.basic_title, Senator
m.09s62kr, government.government_position_held.office_position_or_title, United States Senator
m.09s62r6, government.government_position_held.office_position_or_title, United States Senator
m.09s62wg, government.government_position_held.office_holder, Thomas S. Martin
m.0ncr138, government.government_position_held.district_represented, Virginia
m.09s63nm, government.government_position_held.basic_title, Senator
m.0mtk6wd, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s63pc
m.09s64y_, government.government_position_held.governmental_body, United States Senate
m.09s62yp, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09s63rr
m.0nbxym9, government.government_position_held.district_represented, Virginia
m.04j5vfw, government.government_position_held.basic_title, Senator
m.09s62_h, government.government_position_held.office_position_or_title, United States Senator
m.09s65j4, government.government_position_held.district_represented, Virginia
United States Senate election in Virginia, 2008, common.topic.image, Jim Gilmore 2004 NSTAC
m.09s64y_, government.government_position_held.office_position_or_title, United States Senator
m.0nbx2t1, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.09s63q3
Virginia, government.political_district.representatives, m.09s62yp
m.09s63wl, government.government_position_held.governmental_body, United States Senate
m.09s63l2, government.government_position_held.district_represented, Virginia
Virginia, government.governmental_jurisdiction.government_bodies, Senate of Virginia
m.09s632t, government.government_position_held.governmental_body, United States Senate
m.0nbz1w5, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0ncr138
m.09s62r6, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09pvqqz
m.09s63lt, government.government_position_held.district_represented, Virginia
m.09s62q6, government.government_position_held.district_represented, Virginia
m.09pvmbr, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.elections, United States Senate election in Virginia, 2008
m.0nbytgy, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09s62wg
Virginia, government.political_district.representatives, m.09s62sh
Virginia, government.political_district.representatives, m.09ryhs2
m.09rfkp2, government.government_position_held.district_represented, Virginia
m.09s62_h, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.0n5xv51
m.0nbytgy, government.government_position_held.office_position_or_title, United States Senator
m.09s631z, government.government_position_held.office_position_or_title, United States Senator
m.06wh18l, common.webpage.topic, Senate of Virginia
Virginia, government.political_district.representatives, m.09rfkp2
m.09s63pc, government.government_position_held.office_position_or_title, United States Senator
m.05kfcw0, government.politician.government_positions_held, Jim Webb
m.0n997t6, government.government_position_held.office_holder, William Cabell Rives
m.09s63q3, government.government_position_held.basic_title, Senator
Virginia, government.political_district.representatives, m.09s63sp
Virginia, government.governmental_jurisdiction.government_positions, Secretary of the Commonwealth of Virginia
m.09s63q3, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09pvn_7
m.09s63l2, government.government_position_held.office_position_or_title, United States Senator
m.09s64y_, government.government_position_held.district_represented, Virginia
m.09s62_z, government.government_position_held.office_position_or_title, United States Senator
m.09ryj3c, government.government_position_held.district_represented, Virginia
m.0hz7b6m, government.government_position_held.jurisdiction_of_office, Virginia
m.09s646c, government.government_position_held.office_holder, John F. Lewis
Virginia, government.political_district.representatives, m.09s63nm
m.0n997t6, government.government_position_held.office_position_or_title, United States Senator
United States Senate election in Virginia, 2008, government.election.general_election, Virginia state elections, 2008
m.09s62zj, government.government_position_held.office_holder, John W. Johnston
m.09s62tf, government.government_position_held.basic_title, Senator
Secretary of state, government.government_office_category.offices, Secretary of the Commonwealth of Virginia
m.09s64nd, government.government_position_held.office_position_or_title, United States Senator
m.09pvb56, government.government_position_held.office_holder, William Grayson
m.09qpvwz, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.09ryj37
m.011cr5g_, government.government_position_held.governmental_body, Virginia General Assembly
m.09s65j4, government.government_position_held.basic_title, Senator
m.0ncr138, government.government_position_held.office_position_or_title, United States Senator
m.09s62vv, government.government_position_held.office_position_or_title, United States Senator
m.0nbx2t1, government.government_position_held.office_position_or_title, United States Senator
m.09pvqqz, government.government_position_held.office_position_or_title, United States Senator
Virginia, government.political_district.representatives, m.0nbz1t4
m.09s63sp, government.government_position_held.office_position_or_title, United States Senator
John Randolph of Roanoke, government.politician.government_positions_held, m.09s64nd
United States Senate election in Virginia, 2008, common.topic.notable_types, Election contest
m.09ryj64, government.government_position_held.office_holder, Richard Henry Lee
m.09s62vv, government.government_position_held.basic_title, Senator
Government of Virginia, government.government.government_for, Virginia
m.09s633h, government.government_position_held.district_represented, Virginia
Virginia, government.political_district.representatives, m.0n997t6
m.09ryjt0, government.government_position_held.district_represented, Virginia
m.09ryjgm, government.government_position_held.office_holder, Edmund Pendleton
United States Senate election in Virginia, 2008, government.election.district, Virginia
m.09s62z0, government.government_position_held.office_position_or_title, United States Senator
m.05kfcw0, government.government_position_held.office_holder, Jim Webb
m.09s631z, government.government_position_held.governmental_body, United States Senate
m.09s62xk, government.government_position_held.district_represented, Virginia
m.09s62kr, government.government_position_held.district_represented, Virginia
m.0n5xv51, government.government_position_held.district_represented, Virginia
United States Senate, government.government_position_held.governmental_body, m.05kfcw0

Answer: Jim Webb