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 ocean does the river in Songo, Mozambique go to? 
Knowledge Triplets: Statistical region, freebase.type_profile.strict_included_types, Inanimate
Location, freebase.type_profile.published, Published
City/Town/Village, freebase.type_profile.strict_included_types, Statistical region
Statistical region, freebase.type_profile.strict_included_types, Abstract
Statistical region, type.type.domain, Location
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckk2n
Statistical region, freebase.type_profile.strict_included_types, Location
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckkfd
City/Town/Village, type.type.domain, Location
Dated location, freebase.type_profile.strict_included_types, Topic
Statistical region, freebase.type_profile.strict_included_types, Topic
Topic, freebase.type_profile.published, Published
City/Town/Village, freebase.type_profile.strict_included_types, Agent
City/Town/Village, freebase.type_hints.included_types, Location
Postal codes, type.property.schema, City/Town/Village
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010kkbry
Songo, Mozambique, common.topic.notable_types, City/Town/Village
City/Town/Village, freebase.type_profile.strict_included_types, Location
Village, freebase.equivalent_topic.equivalent_type, City/Town/Village
City Limits, type.property.schema, City/Town/Village
Statistical region, freebase.type_hints.included_types, Location
City/Town/Village, freebase.type_profile.strict_included_types, Topic
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010h51x5
Dated location, freebase.type_profile.published, Published
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011m9jg_
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011nr3__
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckjwd
City/Town/Village, freebase.type_profile.kind, Definition
City/Town/Village, freebase.type_profile.published, Published
City/Town/Village, base.descriptive_names.names.descriptive_name, m.012_976x
Location, type.type.domain, Location
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010kk9vk
City/Town/Village, common.topic.article, m.03bnd2c
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckk64
Songo, Mozambique, common.topic.notable_for, g.125h68v6f
City/Town/Village, freebase.type_profile.strict_included_types, Abstract
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011c38cw
City/Town/Village, freebase.type_hints.included_types, Topic
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010h51_h
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckjv4
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010h51y0
City/Town/Village, freebase.type_profile.kind, Significant
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010h51zj
Statistical region, freebase.type_profile.published, Published
Statistical region, freebase.type_hints.included_types, Topic
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010rnll5
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011nbp0r
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011jt74t
City/Town/Village, freebase.type_profile.equivalent_topic, Town
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010h5200
Location, freebase.type_hints.included_types, Topic
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010h51yy
City/Town/Village, base.descriptive_names.names.descriptive_name, m.0111t6pl
City/Town/Village, base.descriptive_names.names.descriptive_name, m.012_74vb
City/Town/Village, type.type.properties, City Limits
Location, freebase.type_profile.strict_included_types, Inanimate
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckj_k
City Limits, rdf-schema#domain, City/Town/Village
Dated location, type.type.domain, Location
City, freebase.equivalent_topic.equivalent_type, City/Town/Village
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011m57bw
City/Town/Village, freebase.type_profile.strict_included_types, Inanimate
Dated location, freebase.type_profile.strict_included_types, Abstract
City/Town/Village, freebase.type_profile.strict_included_types, Dated location
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011jtngz
Town, freebase.equivalent_topic.equivalent_type, City/Town/Village
City/Town/Village, base.descriptive_names.names.descriptive_name, m.0111t6vw
City/Town/Village, base.descriptive_names.names.descriptive_name, m.0114s4js
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011jt6z3
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010r12s4
Dated location, freebase.type_hints.included_types, Location
City/Town/Village, freebase.type_hints.included_types, Dated location
City/Town/Village, freebase.type_hints.included_types, Statistical region
City/Town/Village, base.descriptive_names.names.descriptive_name, m.0105y_05
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011ckjyy
City/Town/Village, freebase.type_profile.equivalent_topic, City
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011tz0b1
Dated location, freebase.type_profile.strict_included_types, Inanimate
City/Town/Village, type.type.properties, Postal codes
City/Town/Village, freebase.type_profile.equivalent_topic, Village
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011lvjc_
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011vl2ss
City/Town/Village, base.descriptive_names.names.descriptive_name, m.010kkbfd
City/Town/Village, base.descriptive_names.names.descriptive_name, m.012z3l2r
Dated location, freebase.type_profile.strict_included_types, Location
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011x4lp6
Postal codes, rdf-schema#domain, City/Town/Village
Significant, freebase.type_kind.types, City/Town/Village
City/Town/Village, base.descriptive_names.names.descriptive_name, m.011f9yg3
Dated location, freebase.type_hints.included_types, Topic
City/Town/Village, base.descriptive_names.names.descriptive_name, m.012w3hyx

Answer: Indian Ocean