Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.

Question: Is helicobacter pylori associated with anaemia in Latin America : results from Argentina , Brazil , Bolivia , Cuba , Mexico and Venezuela?
Answer: The present study showed no evidence to support the hypothesis that H. pylori contributes to anaemia in children, adolescents, adults or pregnant women in six Latin American countries.
no