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

Answer: Zhuang Zhou
Tao Te Ching
I Ching
Daozang