Question: Who has the medical condition known as gastroesophageal reflux disease?
Choices: Robin Williams
William Henry Harrison
David Foster
Richard Gere
Barack Obama
Sylvester Stallone
Ringo Starr
Amy Winehouse
Max Fleischer
Ioan Gruffudd
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <medical_condition> ?e_1 . ?e_1 <pred:name> "gastroesophageal reflux disease" .   }
Program:
function: Find
inputs: gastroesophageal reflux disease
function: Relate
dependencies: 0
inputs: medical condition
backward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
Answer: Barack Obama