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: Who was the golden boot winner who had 15 total goals? 
Knowledge Triplets: Premier League Golden Boot, award.award_category.winners, m.0w4119z
Premier League Golden Boot, award.award_category.winners, m.0w3m61v
Presenting Organization, type.property.schema, Award category
Award category, type.type.expected_by, Award
Robin van Persie, award.award_winner.awards_won, m.0w4119z
Category of, owl#inverseOf, Categories
Award category, type.type.expected_by, Categories
Award category, freebase.type_profile.published, Published
m.0w4119z, award.award_honor.award_winner, Robin van Persie
Category of, rdf-schema#domain, Award category
m.0w4119z, award.award_honor.award_winner, Robin van Persie
Award category, freebase.type_profile.strict_included_types, Non-Agent
Nominees, type.property.schema, Award category
Award category, freebase.type_profile.strict_included_types, Inanimate
Premier League Golden Boot, award.award_category.winners, m.0w41162
Category, type.property.reverse_property, Recurring ceremony
Premier League Golden Boot, award.award_category.winners, m.0w41162
Award category, freebase.type_hints.included_types, Topic
Recurring ceremony, rdf-schema#domain, Award category
m.0w41162, award.award_honor.award_winner, Robin van Persie
Robin van Persie, award.award_winner.awards_won, m.0w41162
Pulitzer Prize for Poetry, freebase.valuenotation.has_no_value, Date Discontinued
Date Discontinued, type.property.schema, Award category
Award category, type.type.expected_by, Award categories presented
Award category, type.type.properties, Presenting Organization
Award category, type.type.expected_by, Award categories
Category, rdf-schema#range, Award category
Award category, type.type.properties, Nominees
Category, owl#inverseOf, Recurring ceremony
Award category, type.type.expected_by, award
Winners, type.property.master_property, Award category
Pulitzer Prize for Poetry, common.topic.notable_types, Award category
Award category, type.type.properties, Disciplines or subjects
Topic, freebase.type_profile.published, Published
m.0w4119z, award.award_honor.award, Premier League Golden Boot
Award category, freebase.type_profile.featured_topics, Pulitzer Prize for Poetry
Award category, type.property.reverse_property, Winners
Award category, type.property.expected_type, Award category
Premier League Golden Boot, common.topic.notable_types, Award category
Award category, type.type.properties, Judges/Jury
Date Established, type.property.schema, Award category
Award category, freebase.type_profile.strict_included_types, Abstract
Category, type.property.expected_type, Award category
Date Discontinued, rdf-schema#domain, Award category
Award category, type.type.properties, Award announcements
Award category, type.type.properties, Long lists
Winners, rdf-schema#domain, Award category
Award category, type.type.expected_by, Category
Date Established, rdf-schema#domain, Award category
Award category, type.type.properties, Recurring ceremony
Recurring ceremony, type.property.schema, Award category
m.0w3m61v, award.award_honor.award_winner, Cristiano Ronaldo
Presenting Organization, owl#inverseOf, Award categories presented
Nominees, type.property.master_property, Award
Cristiano Ronaldo, award.award_winner.awards_won, m.0w3m61v
Category of, type.property.schema, Award category
Award category, type.type.properties, Winners
Award category, freebase.type_profile.strict_included_types, Topic
Premier League Golden Boot, award.award_category.winners, m.0w4119z
Award, rdf-schema#range, Award category
Award category, common.topic.article, m.02nqvht
Category of, type.property.reverse_property, Categories
Award, type.property.reverse_property, Nominees
Award, type.property.expected_type, Award category
Presenting Organization, type.property.reverse_property, Award categories presented
m.0w41162, award.award_honor.award, Premier League Golden Boot
m.0w3m61v, award.award_honor.award, Premier League Golden Boot
Premier League Golden Boot, common.topic.notable_for, g.1yl5mv_6r
Award category, rdf-schema#range, Award category
m.0w41162, award.award_winner.awards_won, Robin van Persie
Award category, type.type.properties, Date Discontinued
Award category, type.type.expected_by, Awards Bestowed
Winners, type.property.schema, Award category
Award category, freebase.type_profile.kind, Classification
Award category, type.type.domain, Awards
Award category, freebase.documented_object.documentation, m.02nqvht
Award category, type.type.properties, Nomination announcements
Recurring ceremony, type.property.master_property, Category
Award category, type.type.expected_by, Award category
Award category, type.type.expected_by, Awards in this discipline
Presenting Organization, rdf-schema#domain, Award category
Nominees, rdf-schema#domain, Award category
Award category, type.type.properties, Category of
Award category, type.type.properties, Date Established
Award, owl#inverseOf, Nominees
Premier League Golden Boot, common.topic.article, m.0by0312
Award category, owl#inverseOf, Winners

Answer: Robin van Persie