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 currency was used prior to the Euro in the country where the legislative session of the Ayrault Government was held? 
Knowledge Triplets: Government of France, government.governmental_body.members, m.0102_8wl
Ayrault Government, base.schemastaging.context_name.pronunciation, m.01315jn_
m.0104n3yl, government.government_position_held.jurisdiction_of_office, France
Government of France, government.governmental_body.sessions, Cabinet of General Cavaignac
m.05b9f75, measurement_unit.dated_money_value.currency, Assignat
Assignat, finance.currency.countries_used, Kingdom of France
Government of France, government.governmental_body.members, m.0102_85v
Manuel Valls, people.person.nationality, France
First Valls Government, freebase.valuenotation.has_no_value, Date ended
Topic, freebase.type_profile.published, Published
France, government.governmental_jurisdiction.governing_officials, m.0ngnm7g
Legislative session, type.type.domain, Government
m.0102_85v, government.government_position_held.jurisdiction_of_office, France
Cabinet of General Cavaignac, government.legislative_session.legislature, Government of France
Legislative session, type.type.expected_by, Session
Legislature, rdf-schema#domain, Legislative session
Date ended, type.property.schema, Legislative session
m.012hylfy, organization.organization_relationship.parent, Government of France
First Valls Government, freebase.valuenotation.is_reviewed, Date began
Legislature, type.property.reverse_property, Sessions
Legislative sessions, rdf-schema#range, Legislative session
Ayrault Government, common.topic.notable_for, g.1q5gxy12t
Government of France, common.topic.notable_types, Organization
Ayrault Government, government.government_position_held.legislative_sessions, m.0ngnm7g
m.0102_8wl, government.government_position_held.basic_title, Minister
m.0102_2fw, government.government_position_held.basic_title, Minister
France, government.governmental_jurisdiction.governing_officials, m.0104n3yl
Date began, type.property.schema, Legislative session
Government of France, government.governmental_body.members, m.0102_2fw
Legislative sessions, type.property.reverse_property, Members
Assignat, finance.currency.countries_formerly_used, France
m.0104n3yl, government.government_position_held.governmental_body, Government of France
Ayrault Government, government.legislative_session.legislature, Government of France
Cabinet of General Cavaignac, common.topic.notable_types, Legislative session
Legislative session, freebase.type_hints.included_types, Topic
France, government.governmental_jurisdiction.governing_officials, m.0102_7kh
Date began, rdf-schema#domain, Legislative session
Legislative session, type.type.properties, Date ended
Legislative session, type.type.expected_by, Legislative Sessions
Minister of the Interior, government.government_office_or_title.office_holders, m.0ngnm7g
m.0ngnm7g, government.government_position_held.basic_title, Minister
Legislative session, freebase.type_profile.published, Published
Ayrault Government, common.topic.notable_types, Legislative session
Manuel Valls, government.politician.government_positions_held, m.0ngnm7g
m.0ngnm7g, government.government_position_held.jurisdiction_of_office, France
m.0102_7kh, government.government_position_held.governmental_body, Government of France
Legislature, type.property.schema, Legislative session
First Valls Government, government.legislative_session.legislature, Government of France
Organization, freebase.type_profile.published, Published
Legislative sessions, type.property.expected_type, Legislative session
m.0102_81j, government.government_position_held.jurisdiction_of_office, France
Government of France, common.topic.article, m.099gws
Legislative session, common.topic.article, m.03h92my
Organization, freebase.type_profile.strict_included_types, Topic
m.0102_7kh, government.government_position_held.basic_title, Minister
m.0102_85v, government.government_position_held.governmental_body, Government of France
Government of France, common.topic.notable_for, g.1q3scphsg
Legislative session, type.type.properties, Legislature
m.0102_7kh, government.government_position_held.jurisdiction_of_office, France
m.0102_85v, government.government_position_held.basic_title, Minister
m.0102_8wl, government.government_position_held.jurisdiction_of_office, France
Legislative session, freebase.type_profile.strict_included_types, Topic
Government of France, government.governmental_body.sessions, Ayrault Government
France, government.governmental_jurisdiction.governing_officials, m.0102_8wl
m.0ngnm7g, government.government_position_held.jurisdiction_of_office, France
Legislative session, type.type.expected_by, Sessions
m.0102_81j, government.government_position_held.governmental_body, Government of France
France, location.country.currency_formerly_used, Assignat
France, government.governmental_jurisdiction.governing_officials, m.0102_81j
Government of France, government.governmental_body.sessions, First Valls Government
Legislative sessions, owl#inverseOf, Members
m.0ngnm7g, government.government_position_held.legislative_sessions, Ayrault Government
Government of France, government.governmental_body.members, m.0102_7kh
Government of France, organization.organization.child, m.012hylfy
m.0102_2fw, government.government_position_held.jurisdiction_of_office, France
m.0102_2fw, government.government_position_held.governmental_body, Government of France
Ayrault Government, government.legislative_session.members, m.0ngnm7g
m.0ngnm7g, government.government_position_held.governmental_body, Government of France
Legislative session, freebase.type_profile.kind, Definition
Legislative session, type.type.properties, Members
Government of France, government.governmental_body.members, m.0102_81j
Date ended, rdf-schema#domain, Legislative session
m.0ngnm7g, government.government_position_held.office_holder, Manuel Valls
Ayrault Government, common.topic.article, m.0jwr0l5
Assignat, base.monetarydebase.debased_currency.issuing_government, French First Republic
Assignat, base.monetarydebase.debased_currency.largest_denomination, m.05b9mj9
First Valls Government, common.topic.notable_types, Legislative session
Government of France, base.schemastaging.context_name.pronunciation, m.01316yvp
m.0102_8wl, government.government_position_held.governmental_body, Government of France
m.0102_81j, government.government_position_held.basic_title, Minister
Legislature, owl#inverseOf, Sessions
France, location.country.currency_formerly_used, Assignat
France, government.governmental_jurisdiction.governing_officials, m.0102_2fw
m.0ngnm7g, government.government_position_held.office_position_or_title, Minister of the Interior
Kingdom of France, location.country.currency_used, Assignat
Government of France, government.governmental_body.members, m.0104n3yl
Organization, freebase.type_hints.included_types, Topic
m.0104n3yl, government.government_position_held.basic_title, Minister
Legislative session, type.type.expected_by, Legislative sessions
Legislative session, type.type.properties, Date began
France, government.governmental_jurisdiction.governing_officials, m.0102_85v
First Valls Government, freebase.valuenotation.is_reviewed, Legislature
Government of France, government.governmental_body.members, m.0ngnm7g

Answer: Assignat