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 daughter's name of the person who attended education institution St. Mary's Elementary School? 
Knowledge Triplets: Educational Institution, freebase.type_hints.included_types, Organization
Educational Institution, freebase.type_profile.strict_included_types, Topic
Blue Ivy, people.person.languages, American English
Beyoncé Knowles, people.person.parents, Blue Ivy
Educational Institution, type.type.properties, Number of staff
m.04d1v_4, education.education.student, Beyoncé Knowles
m.04d1v_4, freebase.valuenotation.has_value, End Date
Educational Institution, type.type.properties, School magazines
Institution, type.property.expected_type, Educational Institution
Educational Institution, type.type.expected_by, Member organisations
Educational Institution, freebase.type_hints.included_types, Employer
Employer, freebase.type_profile.strict_included_types, Agent
Mascot, owl#inverseOf, School
Blue Ivy, book.book_subject.musical_compositions_about_this_topic, Glory
Educational Institution, type.type.expected_by, School/Institution
Educational Institution, type.type.expected_by, Educational institution
Educational Institution, type.type.expected_by, Holding Institution
Educational Institution, common.topic.article, m.021y5nd
Educational Institution, freebase.type_profile.strict_included_types, Organization
Educational Institution, type.type.expected_by, Sponsor
Phone number, rdf-schema#domain, Educational Institution
m.04d1v_4, education.education.institution, St. Mary's Elementary School
Educational Institution, freebase.type_hints.included_types, Topic
Educational Institution, freebase.type_profile.strict_included_types, Agent
m.04d1v_4, people.person.education, Beyoncé Knowles
Organization, freebase.type_profile.strict_included_types, Abstract
School, type.property.master_property, Sports teams
St. Mary's Elementary School, education.educational_institution.students_graduates, m.04d1v_4
School type, type.property.reverse_property, Schools of this kind
Blue Ivy, music.featured_artist.recordings, Blue
Educational Institution, type.type.properties, Subsidiary Or Constituent Schools
Colors, rdf-schema#domain, Educational Institution
Educational Institution, freebase.type_profile.strict_included_types, Inanimate
Blue Ivy, people.person.parents, Jay-Z
Upper East Side, location.location.people_born_here, Blue Ivy
Educational Institution, type.type.expected_by, Accademia Anja
Beyoncé Knowles, people.person.education, m.04d1v_4
Jay-Z, people.person.children, Blue Ivy
Topic, freebase.type_profile.published, Published
Employer, freebase.type_profile.published, Published
Blue Ivy, people.person.place_of_birth, Upper East Side
Educational Institution, freebase.type_profile.strict_included_types, Employer
School type, rdf-schema#domain, Educational Institution
Institution, owl#inverseOf, Students/Graduates
School, type.property.expected_type, Educational Institution
Colors, type.property.schema, Educational Institution
Blue Ivy, people.person.parents, Beyoncé Knowles
St. Mary's Elementary School, common.topic.notable_types, Educational Institution
Educational Institution, freebase.documented_object.documentation, m.021y5nd
Institution, rdf-schema#range, Educational Institution
Phone number, type.property.schema, Educational Institution
Educational Institution, type.type.properties, Parent Institution
Blue Ivy, people.person.nationality, United States of America
Blue Ivy, people.person.date_of_birth, 2012-01-07
Employer, freebase.type_hints.included_types, Topic
School, type.property.master_property, Mascot
Educational Institution, type.type.properties, Motto
St. Mary's Elementary School, education.educational_institution.students_graduates, m.04d1v_4
School/Institution, type.property.expected_type, Educational Institution
Educational Institution, type.type.expected_by, Associated Institutions
Educational Institution, type.type.properties, Honorary degrees awarded
Educational Institution, type.type.properties, School type
Educational Institution, type.type.expected_by, Parent Institution
Educational Institution, type.type.properties, Radio station
Blue Ivy, music.artist.track, Blue
Mascot, rdf-schema#domain, Educational Institution
Educational Institution, type.type.expected_by, Subsidiary Or Constituent Schools
School/Institution, rdf-schema#range, Educational Institution
Educational Institution, freebase.type_profile.strict_included_types, Abstract
Blue Ivy, people.person.gender, Female
Glory, music.composition.subjects, Blue Ivy
Institution, owl#inverseOf, Honorary degrees awarded
Educational Institution, type.type.expected_by, Associated educational institution
Blue Ivy, people.person.height_meters, 0.56
Educational Institution, type.type.expected_by, Schools of this kind
Organization, freebase.type_hints.included_types, Topic
m.04d1v_4, freebase.valuenotation.has_value, Start Date
Educational Institution, type.type.properties, Students/Graduates
Institution, type.property.reverse_property, Students/Graduates
Organization, freebase.type_profile.strict_included_types, Agent
School type, type.property.schema, Educational Institution
Educational Institution, type.type.domain, Education
Educational Institution, type.type.properties, Sports teams
Educational Institution, type.type.properties, Phone number
St. Mary's Elementary School, common.topic.notable_for, g.125dm_z2w
Educational Institution, type.type.properties, Newspaper
Educational Institution, type.type.properties, Total Enrollment
Educational Institution, type.type.properties, Campuses
Educational Institution, type.type.properties, Mascot
Blue Ivy, base.schemastaging.context_name.official_name, Blue Ivy Carter
Educational Institution, type.type.expected_by, Institution
Educational Institution, type.type.properties, Nickname
Organization, freebase.type_profile.published, Published
Education, type.domain.types, Educational Institution
Educational Institution, type.type.expected_by, Teaches at
Organization, freebase.type_profile.strict_included_types, Inanimate
Blue, music.recording.featured_artists, Blue Ivy
Educational Institution, type.type.properties, Athletics brand
Educational Institution, type.type.properties, Colors
Educational Institution, type.type.properties, Sexes admitted
Employer, freebase.type_profile.strict_included_types, Topic
Educational Institution, freebase.type_profile.kind, Description
Educational Institution, freebase.type_profile.published, Published
Educational Institution, type.type.expected_by, School
Mascot, type.property.schema, Educational Institution
Organization, freebase.type_profile.strict_included_types, Topic
Mascot, type.property.reverse_property, School
Institution, type.property.reverse_property, Honorary degrees awarded
School type, owl#inverseOf, Schools of this kind
Blue, music.recording.artist, Blue Ivy
School, rdf-schema#range, Educational Institution
Beyoncé Knowles, people.person.children, Blue Ivy
Educational Institution, type.type.properties, Number of faculty

Answer: Blue Ivy