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: Whence is the ethnicity of the actor who played the character Gratuity 'Tip' Tucci? 
Knowledge Triplets: Character, type.property.reverse_property, Portrayed in films
Fictional Character, freebase.type_profile.strict_included_types, Topic
Afro-Guyanese, people.ethnicity.people, Forbes Burnham
Sam Hinds, people.person.ethnicity, Afro-Guyanese
Afro-Guyanese, people.ethnicity.languages_spoken, Guyanese Creole English Language
Gratuity 'Tip' Tucci, film.film_character.portrayed_in_films, m.0mwfph3
Africans, people.ethnicity.includes_groups, Afro-Guyanese
Film character, freebase.type_profile.kind, Annotation
Film, type.domain.types, Film character
Film character, freebase.type_hints.included_types, Topic
Afro-Guyanese, people.ethnicity.people, Sam Hinds
Fictional Character, freebase.type_profile.kind, Portrayal
Character, rdf-schema#range, Film character
Film character, freebase.type_profile.strict_included_types, Topic
Afro-Guyanese, people.ethnicity.people, Eon Sinclair
Film character, freebase.type_profile.strict_included_types, Fictional Character
Character, type.property.expected_type, Film character
Topic, freebase.type_profile.published, Published
m.0mwfph3, film.performance.actor, Rihanna
Afro-Guyanese, people.ethnicity.people, Rihanna
Film character, freebase.type_hints.included_types, Fictional Character
Film character, type.type.expected_by, Killed by
Film character, common.topic.article, m.02_96_z
Film character, type.type.expected_by, Character using Wham-O product
Afro-American peoples of the Americas, people.ethnicity.includes_groups, Afro-Guyanese
Rihanna, film.actor.film, m.0mwfph3
Phil Lynott, people.person.ethnicity, Afro-Guyanese
Afro-Guyanese, people.ethnicity.people, Phil Lynott
Film character, type.type.expected_by, Other conquests
Rihanna, people.ethnicity.people, Afro-Guyanese
Forbes Burnham, people.person.ethnicity, Afro-Guyanese
Ptolemy Reid, people.person.ethnicity, Afro-Guyanese
Red Café, people.person.ethnicity, Afro-Guyanese
Gratuity 'Tip' Tucci, common.topic.notable_for, g.12lpq1hkt
m.0mwfph3, film.performance.actor, Rihanna
Film character, type.type.domain, Film
Eusi Kwayana, people.person.ethnicity, Afro-Guyanese
Afro-Guyanese, people.ethnicity.people, Ptolemy Reid
Film character, freebase.type_profile.published, Published
Film character, type.type.properties, Portrayed in films (dubbed)
Afro-Guyanese, user.avh.default_domain.ellerdale_topic.ellerdale_id, 00a0-6334
Fictional Character, freebase.type_profile.published, Published
Afro-Guyanese, people.ethnicity.people, Eusi Kwayana
Film character, type.type.properties, Portrayed in films
Rihanna, people.person.ethnicity, Afro-Guyanese
Gratuity 'Tip' Tucci, film.performance.character, m.0mwfph3
Film character, freebase.type_profile.kind, Portrayal
m.0mwfph3, film.performance.film, Home
Gratuity 'Tip' Tucci, common.topic.notable_types, Film character
m.0mwfph3, film.performance.special_performance_type, Voice
Afro-Guyanese, people.ethnicity.languages_spoken, English Language
Home, film.film.starring, m.0mwfph3
Topic, freebase.type_profile.kind, Portrayal
m.0mwfph3, film.performance.character, Gratuity 'Tip' Tucci
Fictional Character, freebase.type_hints.included_types, Topic
Character, owl#inverseOf, Portrayed in films
Eon Sinclair, people.person.ethnicity, Afro-Guyanese
Afro-Guyanese, people.ethnicity.people, Red Café
Afro-Guyanese, people.ethnicity.included_in_group, Africans
Afro-Guyanese, people.ethnicity.included_in_group, Afro-American peoples of the Americas
Film character, type.type.expected_by, Character

Answer: Afro-Guyanese