Question: The visual artwork titled Percy Jackson & the Olympians: The Lightning Thief is about which folklore?
Choices: Nicosia
Northern line
30 Days of Night
drug overdose
Greek mythology
Four Rooms
Hrithik Roshan
Joe Haldeman
Japanese mythology
Caesars Entertainment Corporation
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "folklore" . ?e_1 <main_subject> ?e . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "visual artwork" . ?e_1 <title> ?pv . ?pv <pred:value> "Percy Jackson & the Olympians: The Lightning Thief" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: title
Percy Jackson & the Olympians: The Lightning Thief
function: FilterConcept
dependencies: 1
inputs: visual artwork
function: Relate
dependencies: 2
inputs: main subject
forward
function: FilterConcept
dependencies: 3
inputs: folklore
function: What
dependencies: 4
Answer: Greek mythology