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: Who is the current leader of the governmental jurisdiction that has a governmental office holder named Carlos Manuel Piedra? 
Knowledge Triplets: Cuba, government.governmental_jurisdiction.governing_officials, m.03mr3dn
President, organization.role.leaders, m.0110_fhv
Politician, type.type.expected_by, Resulting head of government
Carlos Manuel Piedra, common.topic.notable_types, Politician
m.012vl0sx, organization.leadership.person, Luiz Centenaro
Cuban Ministry of Foreign Affairs, government.government_agency.jurisdiction, Cuba
Cuba, government.governmental_jurisdiction.government_positions, President of Cuba
m.0114pzps, organization.leadership.person, Krishnan Suthanthiran
m.011nqhd1, organization.leadership.person, Edward Theodore Newell
m.0r9h3f5, government.government_position_held.jurisdiction_of_office, Cuba
m.0r9h970, government.government_position_held.office_holder, Raúl Castro
Mozambique, government.governmental_jurisdiction.governing_officials, m.04dm9pg
Organization leader, type.type.expected_by, Person
President, organization.role.governors, m.01160lcb
Cuba, government.governmental_jurisdiction.governing_officials, m.0r9h3f5
President, organization.role.leaders, m.011qjlzn
m.011xd0mq, organization.leadership.person, James Morrow
m.012nxsv7, organization.leadership.person, Zach Morrison
m.0r9hb4g, government.government_position_held.basic_title, Acting Prime Minister
President, organization.role.leaders, m.011xd0mq
m.012dv8pl, organization.leadership.role, President
m.010g6nzl, government.government_position_held.basic_title, Acting President
m.03mr3c5, government.government_position_held.jurisdiction_of_office, Cuba
m.011n_z58, business.employment_tenure.title, President
President, organization.role.leaders, m.011c2n9v
m.010g78wb, government.government_position_held.jurisdiction_of_office, Cuba
Politician, owl#inverseOf, Party
m.012sr44f, organization.leadership.role, President
m.011sh1kx, organization.leadership.role, President
m.09wwq41, common.webpage.topic, President
m.0115g4sz, organization.leadership.person, Charles Alan Fyffe
m.011byq3j, organization.leadership.role, President
Politician, type.type.domain, Government
m.04zgx28, government.government_position_held.appointed_by, President
m.011rgzqn, organization.leadership.organization, SEIU 775
m.0r9hb4g, government.government_position_held.governmental_body, Council of Ministers
m.011451lj, organization.leadership.person, Henry Miller
President, organization.role.leaders, m.011vg5nd
m.011qyy9l, organization.leadership.role, President
Luiz Centenaro, organization.organization.leadership, m.012vl0sx
President of Cuba, government.government_office_or_title.office_holders, m.03mr3dn
Cuba, government.governmental_jurisdiction.governing_officials, m.010g7bs9
m.01142cy8, freebase.valuenotation.is_reviewed, To
Prime minister, government.government_office_category.officeholders, m.010r0d92
Government, freebase.equivalent_topic.equivalent_domain, Government
Cuba, government.governmental_jurisdiction.governing_officials, m.03mr3cs
Politician, freebase.type_profile.published, Published
President, organization.role.leaders, m.010r11r2
m.0r8vsll, organization.leadership.person, Jeff Idelson
Cuba, government.governmental_jurisdiction.governing_officials, m.0bp7jzz
m.04dm9x3, government.government_position_held.appointed_by, President
President, organization.role.leaders, m.0129f72l
m.01142cy8, organization.leadership.person, Vladimir Mažuranić
m.010g6nzl, government.government_position_held.jurisdiction_of_office, Cuba
Cuba, government.governmental_jurisdiction.governing_officials, m.010g71fk
m.04st17z, government.government_position_held.to, 2008-02-24
Raúl Castro, government.politician.government_positions_held, m.03mr3dn
Person, rdf-schema#range, Organization leader
President, organization.role.leaders, m.012dv8pl
United States of America, government.governmental_jurisdiction.government_positions, Vice President of the United States
m.011c2n9v, organization.leadership.role, President
Cuba, government.governmental_jurisdiction.governing_officials, m.010g7bl0
Council of Ministers, government.governmental_body.members, m.0r9hb4g
Achmet Chatziosman, freebase.valuenotation.is_reviewed, Government Positions Held
President, common.topic.notable_for, g.1256c_knk
m.011rd41j, freebase.valuenotation.is_reviewed, To
Cuba, government.governmental_jurisdiction.governing_officials, m.010g78wb
Politician, freebase.type_profile.kind, Title
Cuba, government.governmental_jurisdiction.governing_officials, m.010r0d92
m.03mr3dn, government.government_position_held.governmental_body, Council of State
Acting Prime Minister, government.government_office_category.officeholders, m.0r9hb4g
President, organization.role.leaders, m.011qyy9l
m.010g6p3r, government.government_position_held.jurisdiction_of_office, Cuba
Council of State, government.governmental_body.members, m.04st17z
President, government.political_appointer.appointees, m.04dm9x3
m.010g7c_y, government.government_position_held.jurisdiction_of_office, Cuba
m.010vy_0c, organization.leadership.organization, NutraSweet
m.010r0d92, government.government_position_held.from, 2008-02-24
m.010g71fk, government.government_position_held.jurisdiction_of_office, Cuba
m.0115g4sz, organization.leadership.role, President
m.0r9h970, government.government_position_held.jurisdiction_of_office, Cuba
Claudio Haddad, business.board_member.leader_of, m.012sr44f
Cuba, government.governmental_jurisdiction.governing_officials, m.010g7582
Cuba, government.governmental_jurisdiction.governing_officials, m.010g78b2
Politician, common.topic.article, m.02xlj10
m.01142cy8, organization.leadership.role, President
m.010g7bl0, government.government_position_held.jurisdiction_of_office, Cuba
m.01067jtb, organization.leadership.person, Mike Ward
m.010r0d92, government.government_position_held.basic_title, Prime minister
m.0hj2q2k, organization.leadership.role, President
President, organization.role.leaders, m.0116yb__
Cuba, government.governmental_jurisdiction.governing_officials, m.010g6p3r
President, organization.role.governors, m.0130dx4d
Cuba, government.governmental_jurisdiction.governing_officials, m.04tn7lv
m.04st17z, government.government_position_held.from, 1976-12-02
President of Cuba, government.government_office_or_title.office_holders, m.0r9h970
m.011clphx, organization.leadership.role, President
m.010r11r2, organization.leadership.role, President
m.010vyf9y, organization.leadership.person, K. S. Jayaraman
Raúl Castro, government.politician.party, m.040qb5s
Politician, type.type.expected_by, Officeholder
m.011cn40s, organization.leadership.person, Hassan Yussuff
m.040qb5s, government.political_party_tenure.politician, Raúl Castro
President, common.topic.webpage, m.09w3vlb
President, organization.role.governors, m.012zl7xj
President, organization.role.leaders, m.010vz03z
m.0hj2q2k, organization.leadership.person, David Rew
m.010r0d92, government.government_position_held.office_position_or_title, Prime Minister of Cuba
m.09xm5ms, common.webpage.topic, President
President, organization.role.leaders, m.011sh1kx
m.09wsrb0, common.webpage.topic, President
m.0116yb__, organization.leadership.role, President
Cuba, government.governmental_jurisdiction.governing_officials, m.010g6nzl
President, organization.role.leaders, m.010vyf9y
Charles Alan Fyffe, business.board_member.leader_of, m.0115g4sz
m.04st17z, government.government_position_held.governmental_body, Council of State
First Vice President of Cuba, government.government_office_or_title.office_holders, m.04st17z
m.010r0d92, government.government_position_held.jurisdiction_of_office, Cuba
President, organization.role.leaders, m.011byq3j
President, organization.role.leaders, m.012hw29r
Cuba, government.governmental_jurisdiction.governing_officials, m.0r9h970
Icrossing, organization.organization.leadership, m.012hw29r
Oxford Union, organization.organization.leadership, m.0115g4sz
m.010g6q82, government.government_position_held.jurisdiction_of_office, Cuba
m.011rd41j, freebase.valuenotation.is_reviewed, Person
m.011rd41j, freebase.valuenotation.is_reviewed, Title
m.0r9h970, government.government_position_held.office_position_or_title, President of Cuba
President, common.topic.webpage, m.09y71d4
m.0r9hb4g, government.government_position_held.office_position_or_title, Prime Minister of Cuba
m.010r11r2, organization.leadership.person, Greg Green
President of Cuba, government.government_office_or_title.jurisdiction, Cuba
m.04tn7lv, government.government_position_held.jurisdiction_of_office, Cuba
m.010x4k8d, organization.leadership.role, President
Cuba, government.governmental_jurisdiction.governing_officials, m.010g6k3l
Vice President, government.government_office_category.officeholders, m.04st17z
President, common.topic.webpage, m.09ynz5g
m.012kzldb, government.political_party_tenure.politician, Raúl Castro
m.0110_fhv, organization.leadership.role, President
m.03mr3dn, government.government_position_held.office_holder, Raúl Castro
m.09w3vlb, common.webpage.topic, President
President, organization.role.leaders, m.010x4k8d
President, common.topic.webpage, m.09wwq41
m.0r9hb4g, government.government_position_held.office_holder, Raúl Castro
m.011v50n9, organization.leadership.role, President
Politician, type.type.properties, Government Positions Held
m.011rgzqn, organization.leadership.role, President
m.0114pzps, organization.leadership.role, President
Cuba, government.governmental_jurisdiction.government_bodies, Council of State
President, organization.role.leaders, m.011rgzqn
President, organization.role.governors, m.012h6rtl
m.09ylvg9, common.webpage.topic, President
Acting President, government.government_office_category.officeholders, m.0r9h970
m.0r9h970, government.government_position_held.from, 2006-07-31
m.010qvq5k, organization.leadership.person, Ünal Aysal
President, organization.role.leaders, m.010vy_0c
m.010vz03z, organization.leadership.role, President
Male, people.person.gender, Raúl Castro
m.011fffbz, organization.leadership.role, President
Officeholder, type.property.reverse_property, Government Positions Held
President, organization.role.leaders, m.012vl0sx
m.0130_1r5, business.employment_tenure.title, President
m.03mr3dn, government.government_position_held.jurisdiction_of_office, Cuba
m.011cn40s, organization.leadership.role, President
President, organization.role.leaders, m.011rd41j
m.012dv8pl, organization.leadership.person, Jan R. Hakemulder
m.04st17z, government.government_position_held.basic_title, Vice President
Barbara Tate, business.board_member.leader_of, m.011rd41j
President, common.topic.article, m.060cg
m.04dm9pg, government.government_position_held.office_holder, Luisa Diogo
m.012nxsv7, organization.leadership.role, President
m.0115g4sz, organization.leadership.organization, Oxford Union
Feliks Młynarski, business.board_member.leader_of, m.011x1m4k
m.0130c97z, business.employment_tenure.title, President
m.011fffbz, organization.leadership.organization, American Society of News Editors
m.012sr44f, organization.leadership.organization, Insper
Ünal Aysal, business.board_member.leader_of, m.010qvq5k
m.09ybsf2, common.webpage.topic, President
m.012vl0sx, organization.leadership.organization, Luiz Centenaro
National Assembly of People's Power, government.governmental_body.jurisdiction, Cuba
First Vice President of Cuba, government.government_office_or_title.jurisdiction, Cuba
Cuba, government.governmental_jurisdiction.governing_officials, m.010g74rg
President, organization.role.leaders, m.011cn40s
Julio Grondona, common.topic.notable_types, Organization leader
m.04st17z, government.government_position_held.office_position_or_title, First Vice President of Cuba
m.03mr3dn, government.government_position_held.from, 2008-02-24
m.03mr3dn, government.government_position_held.basic_title, President
m.011rd41j, freebase.valuenotation.is_reviewed, From
Cuba, government.governmental_jurisdiction.governing_officials, m.010g7675
m.011x1m4k, organization.leadership.person, Feliks Młynarski
Luiz Centenaro, business.board_member.leader_of, m.012vl0sx
m.010g6nfp, government.government_position_held.jurisdiction_of_office, Cuba
Cuba, government.governmental_jurisdiction.governing_officials, m.010g7c_y
Council of State, government.governmental_body.members, m.03mr3dn
m.012hw29r, organization.leadership.role, President
Luisa Diogo, government.politician.government_positions_held, m.04dm9pg
m.0r8vsll, organization.leadership.role, President
m.078ftf0, government.government_position_held.jurisdiction_of_office, Cuba
Carlos Manuel Piedra, common.topic.notable_for, g.125dtc6y0
Cuba, government.governmental_jurisdiction.governing_officials, m.04st17z
m.010g6q9b, government.government_position_held.jurisdiction_of_office, Cuba
President, organization.role.leaders, m.01142cy8
Cuba, government.governmental_jurisdiction.governing_officials, m.010g6q82
m.010x4k8d, organization.leadership.person, Kwesi Nyantakyi
President, common.topic.webpage, m.09xm5ms
Raúl Castro, government.politician.government_positions_held, m.010r0d92
m.09y71d4, common.webpage.topic, President
m.0bp7jzz, government.government_position_held.jurisdiction_of_office, Cuba
m.012dv8px, organization.leadership.person, Sandra Hurlong
m.011v50n9, organization.leadership.person, Taylor Rhodes
Insper, organization.organization.leadership, m.012sr44f
NutraSweet, organization.organization.leadership, m.010vy_0c
President, organization.role.leaders, m.01317kmv
m.011v50n9, organization.leadership.organization, Rackspace
President, organization.role.leaders, m.0r8vsll
m.012hw29r, organization.leadership.person, Don Scales
m.010g74rg, government.government_position_held.jurisdiction_of_office, Cuba
m.011xd0mq, organization.leadership.role, President
m.012dv8px, organization.leadership.role, President
President, organization.role.leaders, m.010qvq5k
m.011p3r_p, organization.leadership.person, Niraj Goel
Raúl Castro, government.politician.party, m.012kzldb
President, government.government_office_category.officeholders, m.03mr3dn
Cuba, government.governmental_jurisdiction.governing_officials, m.0r9hb4g
Cuba, government.governmental_jurisdiction.governing_officials, m.03mr3c5
Carlos Manuel Piedra, people.person.gender, Male
President, common.topic.webpage, m.09ylvg9
m.010r0d92, government.government_position_held.governmental_body, Council of Ministers
m.011mdkxn, organization.leadership.person, Alessandro Zucchetti
m.0105whjl, organization.leadership.role, President
m.011qjlzn, organization.leadership.role, President
m.011qyy9l, organization.leadership.person, Ray Tatko
Cuba, government.governmental_jurisdiction.governing_officials, m.010g78n_
m.012hvzcf, organization.leadership.person, Shanoj Ajayan
m.011451lj, organization.leadership.role, President
Carlos Manuel Piedra, government.politician.government_positions_held, m.010g6nzl
Cuba, government.governmental_jurisdiction.governing_officials, m.010g6q9b
m.010g7675, government.government_position_held.jurisdiction_of_office, Cuba
Cuba, government.governmental_jurisdiction.governing_officials, m.010g6nfp
Julio Grondona, business.board_member.leader_of, m.011cn57h
President, organization.role.governors, m.010qm2ps
Council of State, government.governmental_body.members, m.0r9h970
m.04dm9sd, government.government_position_held.office_holder, Luisa Diogo
Carlos Manuel Piedra, freebase.valuenotation.has_value, Place of birth
m.011clphx, organization.leadership.person, Steve Pettit
President, government.government_position_held.basic_title, m.03mr3dn
m.01142cy8, freebase.valuenotation.is_reviewed, Person
Vladimir Mažuranić, business.board_member.leader_of, m.01142cy8
m.0n55kn3, organization.leadership.role, President
President, organization.role.leaders, m.011p3r_p
m.012sr44f, organization.leadership.person, Claudio Haddad
m.011kx64_, organization.leadership.role, President
President, organization.role.leaders, m.0n55kn3
m.0129f72l, organization.leadership.person, Rudolf Meister
m.010g7bs9, government.government_position_held.jurisdiction_of_office, Cuba
Cuba, government.governmental_jurisdiction.agencies, Cuban Ministry of Foreign Affairs
President, organization.role.leaders, m.011fffbz
m.03mr3dn, government.government_position_held.office_holder, Raúl Castro
m.011nqhd1, organization.leadership.role, President
President, organization.role.leaders, m.012sr44f
m.011rd41j, organization.leadership.role, President
President, organization.role.leaders, m.011clphx
President, organization.role.governors, m.010qln2x
m.01142cy8, freebase.valuenotation.is_reviewed, Title
President, government.political_appointer.appointees, m.04zgx28
m.010vy_0c, organization.leadership.role, President
Cuba, government.governmental_jurisdiction.agencies, Dirección General de Inteligencia
Raúl Castro, government.politician.government_positions_held, m.0r9h970
m.01281197, organization.leadership.role, President
m.011mdkxn, organization.leadership.role, President
President, common.topic.webpage, m.09wsrb0
Council of Ministers, government.governmental_body.members, m.010r0d92
Cuba, government.governmental_jurisdiction.governing_officials, m.010g790n
m.010r0d92, government.government_position_held.office_holder, Raúl Castro
Carlos Manuel Piedra, common.topic.article, m.061vk4
m.011x1m4k, organization.leadership.role, President
Luisa Diogo, government.politician.government_positions_held, m.04dm9sd
Organization leader, freebase.type_profile.published, Published
m.010g78b2, government.government_position_held.jurisdiction_of_office, Cuba
President, organization.role.leaders, m.011nqhd1
Cuba, government.governmental_jurisdiction.government_bodies, National Assembly of People's Power
m.0129f72l, organization.leadership.role, President
Prime Minister of Cuba, government.government_office_or_title.office_holders, m.010r0d92
President, organization.role.leaders, m.0hj2q2k
President of the Presidency of Religious Affairs of Turkey, religion.religious_leadership_title.leaders, m.0vbcgc9
President, organization.role.leaders, m.010r87tv
m.04st17z, government.government_position_held.jurisdiction_of_office, Cuba
m.011cn57h, organization.leadership.person, Julio Grondona
m.0110_fhv, organization.leadership.person, Warren Jeffs
m.0r9h970, government.government_position_held.governmental_body, Council of State
m.010r87tv, organization.leadership.person, Greg Corradetti
m.012hw29r, organization.leadership.organization, Icrossing
Raúl Castro, government.politician.government_positions_held, m.0r9hb4g
President, government.political_appointer.appointees, m.04dm9sd
Carlos Manuel Piedra, people.person.gender, Male
m.0r9hb4g, government.government_position_held.to, 2008-02-24
President, organization.role.leaders, m.012nxsv7
President, organization.role.leaders, m.012hvzcf
m.03mr3dn, government.government_position_held.office_position_or_title, President of Cuba
m.0r9h970, government.government_position_held.to, 2008-02-24
Alessandro Zucchetti, business.board_member.leader_of, m.011mdkxn
m.03mr3cs, government.government_position_held.jurisdiction_of_office, Cuba
President, organization.role.leaders, m.011cn57h
m.012hvzcf, organization.leadership.role, President
President, organization.role.leaders, m.011mdkxn
m.011kx64_, organization.leadership.person, Achmet Chatziosman
m.011cn57h, organization.leadership.role, President
m.04dm9pg, government.government_position_held.jurisdiction_of_office, Mozambique
m.010g78n_, government.government_position_held.jurisdiction_of_office, Cuba
Alessandro Zucchetti, common.topic.notable_types, Organization leader
Dirección General de Inteligencia, government.government_agency.jurisdiction, Cuba
m.04dm9pg, government.government_position_held.basic_title, Prime minister
President, organization.role.leaders, m.0114pzps
Officeholder, rdf-schema#range, Politician
President, government.political_appointer.appointees, m.04dm9pg
Luisa Diogo, government.politician.government_positions_held, m.04dm9x3
President, organization.role.leaders, m.012dv8px
Officeholder, owl#inverseOf, Government Positions Held
Prime Minister of Cuba, government.government_office_or_title.office_holders, m.0r9hb4g
President, organization.role.leaders, m.0115g4sz
m.011c2n9v, organization.leadership.person, Jan Hanses
m.04dm9x3, government.government_position_held.office_holder, Luisa Diogo
m.011byq3j, organization.leadership.person,  Aaron Watkins
m.011vg5nd, organization.leadership.person, Edward Burke
President, organization.role.leaders, m.011v50n9
President, organization.role.leaders, m.0105whjl
m.010g7582, government.government_position_held.jurisdiction_of_office, Cuba
President, common.topic.webpage, m.09ybsf2
m.011fffbz, organization.leadership.person, Herbert Brucker
m.010vy_0c, organization.leadership.person, Nick Rosa
m.011rd41j, organization.leadership.person, Barbara Tate
m.0116yb__, organization.leadership.person, Sara Myers
m.0105whjl, organization.leadership.person, Manoj Gupta
President, organization.role.leaders, m.011x1m4k
Cuba, government.governmental_jurisdiction.governing_officials, m.078ftf0
m.0n55kn3, organization.leadership.person, Mark Wang
m.011p3r_p, organization.leadership.role, President
m.09ynz5g, common.webpage.topic, President
Frank Cintamani, common.topic.notable_types, Organization leader
m.011vg5nd, organization.leadership.role, President
President, organization.role.governors, m.012m3wj6
Vice President of the United States, government.government_office_or_title.jurisdiction, United States of America
m.0r9h970, government.government_position_held.basic_title, Acting President
m.012vl0sx, organization.leadership.role, President
m.010g6nzl, government.government_position_held.office_holder, Carlos Manuel Piedra
SEIU 775, organization.organization.leadership, m.011rgzqn
m.0r9hb4g, government.government_position_held.jurisdiction_of_office, Cuba
m.011rgzqn, organization.leadership.person, David Rolf
m.01317kmv, organization.leadership.person, John Schott
m.0r9hb4g, government.government_position_held.from, 2006-07-31
m.010qvq5k, organization.leadership.role, President
m.010g6k3l, government.government_position_held.jurisdiction_of_office, Cuba
Raúl Castro, government.politician.government_positions_held, m.04st17z
m.011sh1kx, organization.leadership.person, Helder Bataglia dos Santos
m.010vz03z, organization.leadership.person, Jack Greenwood
m.010g790n, government.government_position_held.jurisdiction_of_office, Cuba
m.04st17z, government.government_position_held.office_holder, Raúl Castro
m.01142cy8, freebase.valuenotation.is_reviewed, From
Council of State, government.governmental_body.jurisdiction, Cuba
m.01317kmv, organization.leadership.role, President
Cuba, government.governmental_jurisdiction.government_positions, First Vice President of Cuba
m.010r87tv, organization.leadership.role, President
m.04dm9pg, government.government_position_held.appointed_by, President
President, organization.role.leaders, m.011kx64_
President, organization.role.leaders, m.011451lj
m.011c2n9v, organization.leadership.organization, Viking Line
Giovanni Sacheli, common.topic.notable_types, Organization leader
m.010vyf9y, organization.leadership.role, President
m.04dm9sd, government.government_position_held.appointed_by, President
President, organization.role.leaders, m.01281197

Answer: Raúl Castro