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 are the parent's names of the actor that played the character Appoline? 
Knowledge Triplets: Film character, type.type.expected_by, Character using Wham-O product
Fictional Character, freebase.type_profile.kind, Portrayal
Bridgit Mendler, film.actor.film, m.0t50mrk
Film character, type.type.expected_by, Character
Bridgit Mendler, people.person.children, Harry Mendler
m.0t50mrk, film.performance.character, Appoline
Topic, freebase.type_profile.published, Published
Character, owl#inverseOf, Portrayed in films
Film character, type.type.properties, Portrayed in films
Character, type.property.reverse_property, Portrayed in films
Film character, type.type.properties, Portrayed in films (dubbed)
Fictional Character, freebase.type_profile.published, Published
Topic, freebase.type_profile.kind, Portrayal
m.0t50mrk, film.performance.actor, Bridgit Mendler
Film character, freebase.type_profile.kind, Annotation
Appoline, common.topic.notable_for, g.1259fp6my
m.0vnzh1y, people.marriage.spouse, Leah Mendler
Harry Mendler, people.person.children, Nick Mendler
Film, type.domain.types, Film character
Appoline, film.performance.character, m.0t50mrk
Bridgit Mendler, people.person.children, Leah Mendler
Nick Mendler, people.person.parents, Leah Mendler
Film character, freebase.type_profile.strict_included_types, Topic
Leah Mendler, people.person.spouse_s, m.0vnzh1y
Film character, freebase.type_hints.included_types, Fictional Character
Film character, type.type.expected_by, Killed by
Harry Mendler, people.person.spouse_s, m.0vnzh1y
Appoline, common.topic.notable_types, Film character
Character, rdf-schema#range, Film character
Fictional Character, freebase.type_profile.strict_included_types, Topic
m.0vnzh1y, people.marriage.spouse, Harry Mendler
Film character, freebase.type_profile.strict_included_types, Fictional Character
Harry Mendler, people.person.gender, Male
Film character, type.type.expected_by, Other conquests
Character, type.property.expected_type, Film character
Film character, common.topic.article, m.02_96_z
Leah Mendler, people.person.children, Nick Mendler
Leah Mendler, people.person.gender, Female
Bridgit Mendler, people.person.parents, Harry Mendler
Beverly Hills Chihuahua 2, film.film.starring, m.0t50mrk
Film character, type.type.domain, Film
Harry Mendler, people.person.children, Bridgit Mendler
Bridgit Mendler, people.person.parents, Leah Mendler
Nick Mendler, people.person.parents, Harry Mendler
m.0t50mrk, film.performance.actor, Bridgit Mendler
Appoline, film.film_character.portrayed_in_films, m.0t50mrk
Film character, freebase.type_profile.kind, Portrayal
m.0t50mrk, film.performance.film, Beverly Hills Chihuahua 2
Leah Mendler, people.person.children, Bridgit Mendler
Film character, freebase.type_profile.published, Published
Film character, freebase.type_hints.included_types, Topic
Fictional Character, freebase.type_hints.included_types, Topic

Answer: Harry Mendler
Leah Mendler