Question: What musical instrument's famous person is the individual whose official website is http://petewentz.com/?
Choices: mandolin
Fender Precision Bass
emo
oud
sitar
pop punk
banjo
Percussion
cowbell
dancehall
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "musical instrument" . ?e <famous_people> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "human" . ?e_1 <official_website> ?pv . ?pv <pred:value> "http://petewentz.com/" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://petewentz.com/
function: FilterConcept
dependencies: 1
inputs: human
function: Relate
dependencies: 2
inputs: famous people
backward
function: FilterConcept
dependencies: 3
inputs: musical instrument
function: What
dependencies: 4
Answer: Fender Precision Bass