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 country is Lasagongma Spring located in? 
Knowledge Triplets: Topic, freebase.type_profile.published, Published
Adjectival form, type.property.schema, Location
Contains, rdf-schema#range, Location
Topic, freebase.type_profile.kind, Meta
UN/LOCODE, type.property.schema, Location
Contains, type.property.reverse_property, Contained by
Contained by, rdf-schema#range, Location
Contains major portion of, type.property.schema, Location
Partially contained by, type.property.expected_type, Location
Location, type.type.properties, Geometry
GEOnet feature ID, type.property.schema, Location
Partially contained by, rdf-schema#domain, Location
Location, type.type.properties, Geolocation
Meta, freebase.type_kind.types, Topic
Lasagongma Spring, common.topic.notable_types, Location
near, rdf-schema#domain, Location
GNIS ID, rdf-schema#domain, Location
Location, freebase.type_profile.tasks, fix /location/adjoining property
Street address, type.property.schema, Location
Location, type.type.properties, Partially contained by
Location, type.type.properties, GNIS ID
Location, freebase.equivalent_topic.equivalent_type, Location
Location, type.type.properties, Partially contains
Contains major portion of, type.property.expected_type, Location
Contains major portion of, type.property.reverse_property, Primarily contained by
Location, type.type.properties, Coterminous with
Geometry, rdf-schema#domain, Location
Location, common.topic.article, m.0kpqf7
Lasagongma Spring, common.topic.notable_for, g.1255yzq3d
Contains, rdf-schema#domain, Location
Geolocation, rdf-schema#domain, Location
Contained by, type.property.expected_type, Location
Geolocation, type.property.schema, Location
Street address, rdf-schema#domain, Location
point, rdf-schema#domain, Location
Location, type.type.properties, Nearby airports
Mean elevation, rdf-schema#domain, Location
Events, rdf-schema#domain, Location
USBG name, rdf-schema#domain, Location
Nearby airports, type.property.schema, Location
Contained by, type.property.master_property, Contains
Partially contained by, type.property.master_property, Partially contains
Location, type.type.properties, Area
Contains, owl#inverseOf, Contained by
Land area, type.property.schema, Location
Primarily contained by, rdf-schema#domain, Location
Coterminous with, rdf-schema#domain, Location
Location, type.type.properties, point
Primarily contained by, type.property.schema, Location
Partially contains, owl#inverseOf, Partially contained by
Location, freebase.documented_object.documentation, m.0kpqf7
Location, type.type.properties, Contained by
Location, type.type.properties, UN/LOCODE
Partially contains, type.property.expected_type, Location
Partially contained by, type.property.schema, Location
Location, type.type.properties, Contains major portion of
Location, type.type.properties, GEOnet feature ID
Location, type.type.domain, Location
Location, type.type.properties, Water area
Mean elevation, type.property.schema, Location
Location, type.type.properties, People born here
Partially contains, type.property.schema, Location
Adjoins, rdf-schema#domain, Location
Geometry, type.property.schema, Location
Location, type.type.properties, Primarily contained by
Location, freebase.domain_profile.equivalent_topic, Location
People born here, rdf-schema#domain, Location
Location, freebase.type_hints.included_types, Topic
Location, type.type.properties, USBG name
Location, type.type.properties, Events
Nearby airports, rdf-schema#domain, Location
Location, freebase.equivalent_topic.equivalent_domain, Location
Coterminous with, type.property.schema, Location
Contained by, type.property.schema, Location
near, type.property.schema, Location
Time zone(s), rdf-schema#domain, Location
Contains major portion of, rdf-schema#range, Location
Location, type.type.properties, Adjoins
inside, type.property.schema, Location
Location, type.type.properties, shape
Location, type.type.properties, Adjectival form
Location, type.type.properties, near
Water area, type.property.schema, Location
Primarily contained by, type.property.expected_type, Location
Location, type.type.properties, Contains
UN/LOCODE, rdf-schema#domain, Location
Adjectival form, rdf-schema#domain, Location
Contains, type.property.schema, Location
Location, type.type.properties, Mean elevation
Location, type.type.properties, Time zone(s)
Time zone(s), type.property.schema, Location
point, type.property.schema, Location
Events, type.property.schema, Location
Primarily contained by, type.property.master_property, Contains major portion of
Location, freebase.type_profile.strict_included_types, Inanimate
Contains, type.property.expected_type, Location
Partially contains, type.property.reverse_property, Partially contained by
GNIS ID, type.property.schema, Location
Location, type.type.properties, inside
inside, rdf-schema#domain, Location
Area, type.property.schema, Location
Primarily contained by, rdf-schema#range, Location
Meta, freebase.type_kind.types, Location
Location, freebase.type_profile.equivalent_topic, Location
Contains major portion of, rdf-schema#domain, Location
Land area, rdf-schema#domain, Location
Adjoins, type.property.schema, Location
People born here, type.property.schema, Location
Contained by, rdf-schema#domain, Location
shape, type.property.schema, Location
Contains major portion of, owl#inverseOf, Primarily contained by
Location, freebase.type_profile.published, Published
USBG name, type.property.schema, Location
Partially contains, rdf-schema#range, Location
Area, rdf-schema#domain, Location
Location, type.type.properties, Land area
Water area, rdf-schema#domain, Location
Partially contained by, rdf-schema#range, Location
shape, rdf-schema#domain, Location
GEOnet feature ID, rdf-schema#domain, Location
Partially contains, rdf-schema#domain, Location
Location, type.type.properties, Street address
Location, freebase.type_profile.kind, Meta

Answer: Vietnam
Cambodia
Laos
Myanmar
Thailand
China