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 represents the jurisdiction with a governmental office holder named Prosper Douglas Bani? 
Knowledge Triplets: Politician, type.type.expected_by, Candidate
Person, freebase.type_profile.strict_included_types, Topic
Officeholder, owl#inverseOf, Government Positions Held
Politician, freebase.type_profile.equivalent_topic, Politician
Chief of staff, government.government_office_category.officeholders, m.0wpsvfz
Politician, freebase.type_profile.published, Published
Ghana, government.governmental_jurisdiction.government_positions, Chief of Staff
Politician, type.type.expected_by, Resulting head of state
Politician, freebase.type_hints.included_types, Topic
m.0wpsvfz, government.government_position_held.office_holder, Prosper Douglas Bani
Politician, type.type.expected_by, politician
Politician, type.type.expected_by, Responsible Minister
m.0jschgs, symbols.flag_use.flag_user, Ghana
Flag of Ghana, symbols.flag.used_by, m.0jschgs
Person, freebase.type_profile.published, Published
m.0wpsvfz, government.government_position_held.jurisdiction_of_office, Ghana
Prosper Douglas Bani, common.topic.notable_for, g.1jmcbwmjj
m.0wpsvfz, government.government_position_held.basic_title, Chief of staff
Politician, base.descriptive_names.names.descriptive_name, m.012vsxv7
Person, freebase.type_profile.strict_included_types, Agent
Ghana, symbols.flag_use.flag_user, m.0jschgs
m.0wpsvfz, freebase.valuenotation.has_no_value, To
Prosper Douglas Bani, government.politician.government_positions_held, m.0wpsvfz
Politician, type.type.domain, Government
m.0jschgs, symbols.flag_use.flag, Flag of Ghana
Party, rdf-schema#domain, Politician
Politician, common.topic.article, m.02xlj10
Politician, people.profession.corresponding_type, Politician
Chief of Staff, government.government_office_or_title.category, Chief of staff
Chief of Staff, government.government_office_or_title.jurisdiction, Ghana
Politician, freebase.type_profile.strict_included_types, Physically Instantiable
Politician, type.type.expected_by, Officeholder
Politician, type.type.properties, Election campaigns
Officeholder, type.property.reverse_property, Government Positions Held
Politician, type.property.reverse_property, Party
Person, freebase.type_profile.strict_included_types, Animate
Party, type.property.master_property, Politician
Chief of staff, government.government_office_category.offices, Chief of Staff
Politician, type.type.properties, Government Positions Held
Politician, type.type.expected_by, Candidates
Politician, type.type.expected_by, Polican
Politician, freebase.type_profile.kind, Title
Politician, type.type.expected_by, Ceann Comhairle
Prosper Douglas Bani, government.politician.government_positions_held, m.0wpsvfz
Politician, type.property.expected_type, Politician
Politician, type.type.expected_by, Member
m.0wpsvfz, government.government_position_held.office_position_or_title, Chief of Staff
Politician, freebase.equivalent_topic.equivalent_type, Politician
Politician, type.type.expected_by, Sponsor
Politician, type.type.expected_by, Resulting head of government
Party, type.property.schema, Politician
Politician, type.type.properties, Party
Prosper Douglas Bani, common.topic.notable_types, Politician
Topic, freebase.type_profile.published, Published
Politician, freebase.type_profile.strict_included_types, Animate
Person, freebase.type_hints.included_types, Topic
Politician, base.descriptive_names.names.descriptive_name, m.011njjqg
m.0wpsvfz, government.government_position_held.jurisdiction_of_office, Ghana
Politician, base.descriptive_names.names.descriptive_name, m.010dyb1l
Politician, freebase.type_profile.strict_included_types, Person
Politician, type.type.properties, Legislative committees served on
Politician, type.type.expected_by, Taoiseach
Officeholder, rdf-schema#range, Politician
Politician, type.type.expected_by, Winner
m.0jschgs, symbols.flag_use.flag, Flag of Ghana
m.0jschgs, symbols.flag_use.from_date, 1966-02-28
Politician, rdf-schema#range, Politician
Politician, freebase.type_profile.strict_included_types, Agent
Politician, type.type.expected_by, Winner(s)
Person, freebase.type_profile.strict_included_types, Physically Instantiable
Politician, freebase.type_profile.strict_included_types, Topic
Chief of Staff, government.government_office_or_title.office_holders, m.0wpsvfz
Politician, type.type.expected_by, Politician
Politician, owl#inverseOf, Party
Ghana, symbols.flag_referent.flag, m.0jschgs
Politician, base.descriptive_names.names.descriptive_name, m.011njjp5
Politician, freebase.type_hints.included_types, Person
Officeholder, type.property.expected_type, Politician
Ghana, government.governmental_jurisdiction.governing_officials, m.0wpsvfz

Answer: Flag of Ghana