Question: Which person is Natasha Richardson's sibling?
Choices: Ben Affleck
River Phoenix
Joel Madden
Kylie Minogue
Sylvester Stallone
Max Fleischer
Joely Richardson
William Henry Harrison
Rory Gallagher
Richard Gere
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e_1 <sibling> ?e . ?e_1 <pred:name> "Natasha Richardson" .   }
Program:
function: Find
inputs: Natasha Richardson
function: Relate
dependencies: 0
inputs: sibling
forward
function: FilterConcept
dependencies: 1
inputs: human
function: What
dependencies: 2
Answer: Joely Richardson