Question: What is the birth name of the person that is a participant of 1960 Summer Olympics ?
Choices: Richard Wayne Penniman
Robyn Rihanna Fenty
Jennifer Shrader Lawrence
Charles David George Stross
Christopher Maurice Brown
George Prifold Harrison
Patricia Louise Holte-Edwards
Marvin Pentz Gay, Jr.
George Timothy Clooney
Hugh John Mungo Grant
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <participant_of> ?e_1 . ?e_1 <pred:name> "1960 Summer Olympics" .  ?e <birth_name> ?pv .  }
Program:
function: Find
inputs: 1960 Summer Olympics
function: Relate
dependencies: 0
inputs: participant of
backward
function: FilterConcept
dependencies: 1
inputs: human
function: QueryAttr
dependencies: 2
inputs: birth name
Answer: George Prifold Harrison