Question: What is the name of an athlete who transferred to FC Dallas in 2009?
Answers:
answer_text:  Dave van den Bergh
answer_text:  Steve Purdy
answer_text:  Daniel Torres
answer_text:  David Ferreira
answer_text:  Álvaro Sánchez
answer_text:  Kyle Davies
answer_text:  Atiba Harris
answer_text:  Marvin Chávez
answer_text:  Ugo Ihemelu