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 god is believed in by the religion whose sacred site is Grotto-heavens? 
Knowledge Triplets: Primarily contained by, rdf-schema#range, Location
Partially contains, type.property.expected_type, Location
UN/LOCODE, rdf-schema#domain, Location
Location, freebase.type_profile.strict_included_types, Inanimate
Nearby airports, rdf-schema#domain, Location
Location, type.type.properties, Partially contains
inside, rdf-schema#domain, Location
Contained by, type.property.master_property, Contains
Partially contained by, rdf-schema#domain, Location
Contained by, rdf-schema#range, Location
Contains major portion of, rdf-schema#range, Location
GNIS ID, rdf-schema#domain, Location
UN/LOCODE, type.property.schema, Location
Adjectival form, type.property.schema, Location
Location, type.type.properties, Contained by
Adjoins, rdf-schema#domain, Location
Location, type.type.properties, UN/LOCODE
Location, type.type.properties, Contains
Partially contains, type.property.schema, Location
Location, type.type.properties, Geometry
Location, type.type.properties, Area
Contained by, type.property.schema, Location
USBG name, rdf-schema#domain, Location
GEOnet feature ID, rdf-schema#domain, Location
Location, type.type.properties, People born here
Nearby airports, type.property.schema, Location
Location, type.type.domain, Location
Location, type.type.properties, Primarily contained by
Contains major portion of, type.property.schema, Location
Area, type.property.schema, Location
Location, common.topic.article, m.0kpqf7
Location, freebase.type_profile.published, Published
Mean elevation, rdf-schema#domain, Location
Location, type.type.properties, Partially contained by
Contains, owl#inverseOf, Contained by
Events, rdf-schema#domain, Location
Location, type.type.properties, point
Contained by, rdf-schema#domain, Location
Primarily contained by, type.property.expected_type, Location
Primarily contained by, rdf-schema#domain, Location
Partially contained by, rdf-schema#range, Location
Grotto-heavens, common.topic.article, m.027n2wx
Location, type.type.properties, Street address
Adjoins, type.property.schema, Location
Geolocation, rdf-schema#domain, Location
Partially contained by, type.property.expected_type, Location
Location, type.type.properties, Mean elevation
Coterminous with, rdf-schema#domain, Location
Location, type.type.properties, USBG name
Location, type.type.properties, inside
Partially contained by, type.property.schema, Location
GNIS ID, type.property.schema, Location
Location, type.type.properties, Nearby airports
Location, type.type.properties, Geolocation
Street address, rdf-schema#domain, Location
Water area, rdf-schema#domain, Location
Location, type.type.properties, GNIS ID
Mean elevation, type.property.schema, Location
Contains major portion of, rdf-schema#domain, Location
Location, type.type.properties, near
Location, freebase.domain_profile.equivalent_topic, Location
Geometry, rdf-schema#domain, Location
shape, rdf-schema#domain, Location
Primarily contained by, type.property.master_property, Contains major portion of
near, type.property.schema, Location
Partially contains, type.property.reverse_property, Partially contained by
inside, type.property.schema, Location
Location, type.type.properties, shape
Location, type.type.properties, Adjectival form
Contained by, type.property.expected_type, Location
USBG name, type.property.schema, Location
near, rdf-schema#domain, Location
Location, type.type.properties, Events
Contains major portion of, type.property.reverse_property, Primarily contained by
Contains, rdf-schema#domain, Location
Primarily contained by, type.property.schema, Location
Location, freebase.equivalent_topic.equivalent_domain, Location
Grotto-heavens, common.topic.notable_types, Location
Time zone(s), type.property.schema, Location
Location, type.type.properties, Water area
Time zone(s), rdf-schema#domain, Location
Coterminous with, type.property.schema, Location
Contains major portion of, owl#inverseOf, Primarily contained by
Partially contains, owl#inverseOf, Partially contained by
GEOnet feature ID, type.property.schema, Location
Geolocation, type.property.schema, Location
Street address, type.property.schema, Location
Partially contains, rdf-schema#range, Location
Adjectival form, rdf-schema#domain, Location
Contains, rdf-schema#range, Location
Location, type.type.properties, Coterminous with
Location, freebase.type_profile.kind, Meta
People born here, rdf-schema#domain, Location
Contains major portion of, type.property.expected_type, Location
Contains, type.property.schema, Location
Partially contains, rdf-schema#domain, Location
shape, type.property.schema, Location
Topic, freebase.type_profile.kind, Meta
Location, freebase.type_hints.included_types, Topic
Location, type.type.properties, Time zone(s)
Topic, freebase.type_profile.published, Published
People born here, type.property.schema, Location
Location, type.type.properties, Land area
Location, freebase.type_profile.equivalent_topic, Location
Location, freebase.type_profile.tasks, fix /location/adjoining property
point, rdf-schema#domain, Location
Events, type.property.schema, Location
Location, type.type.properties, GEOnet feature ID
Partially contained by, type.property.master_property, Partially contains
Meta, freebase.type_kind.types, Location
Meta, freebase.type_kind.types, Topic
Grotto-heavens, common.topic.notable_for, g.12557t7r9
Location, type.type.properties, Contains major portion of
Water area, type.property.schema, Location
point, type.property.schema, Location
Land area, rdf-schema#domain, Location
Area, rdf-schema#domain, Location
Land area, type.property.schema, Location
Contains, type.property.reverse_property, Contained by
Location, freebase.documented_object.documentation, m.0kpqf7
Contains, type.property.expected_type, Location
Location, freebase.equivalent_topic.equivalent_type, Location
Geometry, type.property.schema, Location
Location, type.type.properties, Adjoins

Answer: He Xiangu
Cao Guojiu
Li Tieguai
Lan Caihe
Lü Dongbin
Han Xiangzi
Zhang Guolao
Zhongli Quan
Jade Emperor
Queen Mother of the West
Three Pure Ones
Magu
Yuanshi Tianzun
Cai Shen