TASK DEFINITION: In this task, you are given a question. You have to answer the question based on your information.
PROBLEM: Who, born in 1982, was the main card for the fourth mixed martial arts event "Strikeforce: Triple Threat"?

SOLUTION: Gina Carano

PROBLEM: Were both Daniel Vacek and Iva Majoli tennis playesr?

SOLUTION: yes

PROBLEM: Which American operatic baritone and actor sung in Porgy and Bess album

SOLUTION:
Robert Merrill