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 was the occupation of the main character in the film "Augustine of Hippo"? 
Knowledge Triplets: m.0gcvmk8, film.performance.film, g.12111m4y
Marcella De Marchis, film.film_costumer_designer.costume_design_for_film, g.12111m4y
m.0gcvmkk, film.performance.film, g.12111m4y
m.0gcvmk0, film.performance.film, g.12111m4y
m.0gcvmkp, film.performance.film, g.12111m4y
m.0gcvmjn, film.performance.film, g.12111m4y
m.0gcvmjx, film.performance.film, g.12111m4y
m.0gcvmjj, film.performance.film, g.12111m4y
Roberto Rossellini, film.director.film, g.12111m4y
m.0gcvmlf, film.performance.film, g.12111m4y
m.0gcvmkf, film.performance.film, g.12111m4y
m.0gcvml5, film.performance.film, g.12111m4y
Augustine of Hippo, film.film_subject.films, g.12111m4y
m.0gcvmlk, film.performance.film, g.12111m4y
m.0gcvml1, film.performance.film, g.12111m4y
m.0gcvmky, film.performance.film, g.12111m4y
m.0gcvmjd, film.performance.film, g.12111m4y
m.0gcvmj8, film.performance.film, g.12111m4y
Pompeii, film.film_location.featured_in_films, g.12111m4y
m.0gcvmk4, film.performance.film, g.12111m4y
m.0gcvmkt, film.performance.film, g.12111m4y

Answer: Philosopher
Physician
Writer