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 cause of death of the person in the image of Ryan Dunn crash scene? 
Knowledge Triplets: Ryan Dunn, tv.tv_actor.starring_roles, m.03ljth7
Ryan Dunn, tv.tv_actor.starring_roles, m.0lrkjj9
m.0h2d8cq, film.personal_film_appearance.person, Ryan Dunn
Ryan Dunn, film.actor.film, m.0h2d7_r
Ryan Dunn, film.producer.film, Jackass 3D
Stunt Performer, people.profession.specialization_of, Actor
United States of America, base.biblioness.bibs_topic.subsumes, United States of America
Ronald Dunn, people.person.children, Ryan Dunn
Ryan Dunn, tv.tv_actor.guest_roles, m.09n_m3p
m.0h2d8cj, film.personal_film_appearance.person, Ryan Dunn
Ronald Dunn, freebase.valuenotation.has_value, Country of nationality
Ryan Dunn, freebase.valuenotation.is_reviewed, Place of death
Ryan Dunn, common.topic.webpage, m.03l2rth
m.01105x52, music.track_contribution.contributor, Ryan Dunn
Ryan Dunn, tv.tv_personality.tv_regular_appearances, m.0j_vsjh
Ryan Dunn, film.producer.film, Living Will…
m.0h2d7zv, film.performance.actor, Ryan Dunn
Ryan Dunn, people.person.parents, Linda Piscitello
m.0h2d80s, film.performance.actor, Ryan Dunn
Ryan Dunn, people.person.spouse_s, m.0t_7kt3
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0h2d8d2
Ryan Dunn, common.topic.webpage, m.09445wy
Ryan Dunn, people.person.places_lived, m.03pj41j
Ryan Dunn, film.actor.film, m.0h2d80s
m.062xhl6, film.performance.actor, Ryan Dunn
Ryan Dunn, common.topic.image, Ryan Dunn crash scene
Ryan Dunn, people.person.profession, TV Personality
Ryan Dunn, people.person.profession, Actor
Ryan Dunn, freebase.valuenotation.is_reviewed, Country of nationality
Ryan Dunn, music.artist.track_contributions, m.01105x52
Living Will…, film.film.country, United States of America
Ryan Dunn, tv.tv_actor.starring_roles, m.0lcm55y
Ryan Dunn, tv.tv_program_creator.programs_created, Homewrecker
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0h2d8cq
m.0dcxr2r, film.personal_film_appearance.person, Ryan Dunn
m.0105_bj3, education.education.student, Ryan Dunn
Ryan Dunn crash scene, common.image.size, m.0bt_n_v
m.03pj41j, people.place_lived.person, Ryan Dunn
m.09n_m3v, tv.tv_guest_role.actor, Ryan Dunn
Ryan Dunn, common.topic.article, m.04sdt0
Ronald Dunn, freebase.valuenotation.has_value, Date of birth
m.0svz8g8, film.performance.actor, Ryan Dunn
m.0j_pcxl, tv.tv_regular_personal_appearance.person, Ryan Dunn
Living Will…, film.film.starring, m.0h26cy8
m.0h26cy8, film.performance.actor, Ryan Dunn
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0h2d8c4
m.09445wy, common.webpage.topic, Ryan Dunn
Jackass 3D, film.film.personal_appearances, m.0dcxr2r
Jackass 3D, film.film.produced_by, Ryan Dunn
Ryan Dunn, film.actor.film, m.062xhl6
Ryan Dunn, people.deceased_person.cause_of_death, Traffic collision
Medina, location.hud_county_place.place, Medina
m.0j_vsjh, tv.tv_regular_personal_appearance.program, Homewrecker
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0h2d8cb
m.0h2d7_r, film.performance.actor, Ryan Dunn
Linda Piscitello, people.person.children, Ryan Dunn
m.03ljth7, tv.regular_tv_appearance.series, Homewrecker
m.0lrkjj9, tv.regular_tv_appearance.actor, Ryan Dunn
Ryan Dunn, tv.tv_actor.starring_roles, m.0gy3n6q
Ryan Dunn crash scene, common.topic.image, Ryan Dunn
m.03pjkr0, people.place_lived.person, Ryan Dunn
Ryan Dunn, tv.tv_personality.tv_regular_appearances, m.0j_ty8v
Ryan Dunn, freebase.valuenotation.is_reviewed, Date of death
m.0h2d8c4, film.personal_film_appearance.person, Ryan Dunn
m.0bx2739, tv.regular_tv_appearance.actor, Ryan Dunn
Ryan Dunn, tv.tv_actor.guest_roles, m.09n_m3c
Ryan Dunn, common.topic.notable_types, TV Program Creator
Ryan Dunn, people.person.gender, Male
m.03ljth7, tv.regular_tv_appearance.actor, Ryan Dunn
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0dcxr2r
Actor, people.profession.specializations, Stunt Performer
m.0j_vm89, tv.tv_regular_personal_appearance.person, Ryan Dunn
m.05nvf2m, tv.tv_guest_role.actor, Ryan Dunn
m.0h26cy8, film.performance.film, Living Will…
m.0gy3n6q, tv.regular_tv_appearance.actor, Ryan Dunn
m.0lcm55y, tv.regular_tv_appearance.actor, Ryan Dunn
Ryan Dunn, tv.tv_actor.starring_roles, m.0khw68v
m.0bmsqbp, tv.regular_tv_appearance.actor, Ryan Dunn
m.0j_ty8v, tv.tv_regular_personal_appearance.person, Ryan Dunn
m.0h2d8cb, film.personal_film_appearance.person, Ryan Dunn
m.0cq7429, common.webpage.topic, Ryan Dunn
Ryan Dunn, film.actor.film, m.0jz23q
Ryan Dunn, film.actor.film, m.0h2d7zv
Ryan Dunn, music.artist.track, How Did That Get There
m.09n_m3p, tv.tv_guest_role.actor, Ryan Dunn
Ryan Dunn, people.person.profession, Stunt Performer
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0h2d8cx
Ryan Dunn, people.person.education, m.0105_bj3
m.02vdcdy, film.performance.actor, Ryan Dunn
Ryan Dunn, freebase.valuenotation.is_reviewed, Education
United States of America, base.biblioness.bibs_topic.is_really, United States of America
Ryan Dunn, people.person.parents, Ronald Dunn
Ryan Dunn, people.person.profession, Film Producer
Ryan Dunn, people.deceased_person.cause_of_death, Traffic collision
Ryan Dunn, tv.tv_actor.starring_roles, m.0bx2739
m.04dd015, film.performance.actor, Ryan Dunn
Ryan Dunn, film.person_or_entity_appearing_in_film.films, m.0h2d8cj
m.03l2rth, common.webpage.topic, Ryan Dunn
Ryan Dunn, film.actor.film, m.0h2d7_c
m.0j_vsjh, tv.tv_regular_personal_appearance.person, Ryan Dunn
Ronald Dunn, freebase.valuenotation.has_value, Place of birth
Ryan Dunn, people.person.place_of_birth, Medina
m.09n_m3_, tv.tv_guest_role.actor, Ryan Dunn
Linda Piscitello, freebase.valuenotation.has_value, Place of birth
Ryan Dunn, film.actor.film, m.0svz8g8
Ryan Dunn, tv.tv_actor.guest_roles, m.05nvf2m
Ryan Dunn, common.topic.webpage, m.0cq7429
m.0dcxr2r, film.personal_film_appearance.film, Jackass 3D
m.0t_7kt3, people.marriage.spouse, Ryan Dunn
m.09n_m3c, tv.tv_guest_role.actor, Ryan Dunn
Medina, location.location.people_born_here, Ryan Dunn
Ryan Dunn, tv.tv_actor.guest_roles, m.09n_m3_
m.0gh2ffc, tv.regular_tv_appearance.actor, Ryan Dunn
m.09n_m3j, tv.tv_guest_role.actor, Ryan Dunn
Ryan Dunn, people.person.nationality, United States of America
Ryan Dunn, film.actor.film, m.0h26cy8
m.0jz23q, film.performance.actor, Ryan Dunn
Ryan Dunn, freebase.valuenotation.is_reviewed, Date of birth
Ryan Dunn, tv.tv_personality.tv_regular_appearances, m.0j_vm89
Ryan Dunn, tv.tv_personality.tv_regular_appearances, m.0j_pcxl
Ryan Dunn crash scene, common.image.appears_in_topic_gallery, Ryan Dunn
Linda Piscitello, freebase.valuenotation.has_value, Date of birth
Ryan Dunn, tv.tv_actor.guest_roles, m.09n_m3v
Living Will…, film.film.produced_by, Ryan Dunn
Ronald Dunn, people.person.gender, Male
Linda Piscitello, freebase.valuenotation.has_value, Country of nationality
m.0h2d8d2, film.personal_film_appearance.person, Ryan Dunn
Ryan Dunn, people.deceased_person.place_of_death, West Goshen Township
m.0h2d7_c, film.performance.actor, Ryan Dunn
Ryan Dunn, film.actor.film, m.02vdcdy
m.0khw68v, tv.regular_tv_appearance.actor, Ryan Dunn
Ryan Dunn, people.person.places_lived, m.03pjkr0
Ryan Dunn, people.person.places_lived, m.0wj_x0z
Ryan Dunn, tv.tv_actor.starring_roles, m.0gh2ffc
m.0h2d8cx, film.personal_film_appearance.person, Ryan Dunn
Ryan Dunn, film.actor.film, m.04dd015
Jackass 3D, film.film.country, United States of America
Ryan Dunn, tv.tv_actor.guest_roles, m.09n_m3j
Ryan Dunn, common.topic.notable_for, g.1255jzn7d
m.0wj_x0z, people.place_lived.person, Ryan Dunn
Ryan Dunn, tv.tv_actor.starring_roles, m.0bmsqbp
Ryan Dunn, freebase.valuenotation.is_reviewed, Place of birth
Ryan Dunn, freebase.valuenotation.is_reviewed, Gender

Answer: Traffic collision