Question: Which Major League Baseball Draft had Pittsburgh Pirates as the participant ?
Choices: 1997 Major League Baseball draft
Tabriz
2000 Major League Baseball season
2002 Major League Baseball draft
Neal H. Moritz
Phoenix
2004 Major League Baseball draft
2007 Major League Baseball season
Leslie Bricusse
2006 Major League Baseball draft
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "Major League Baseball draft" . ?e <participant> ?e_1 . ?e_1 <pred:name> "Pittsburgh Pirates" .   }
Program:
function: Find
inputs: Pittsburgh Pirates
function: Relate
dependencies: 0
inputs: participant
backward
function: FilterConcept
dependencies: 1
inputs: Major League Baseball draft
function: What
dependencies: 2
Answer: 2002 Major League Baseball draft