Question: Which Amazon author page belongs to English speaking Joseph Conrad?
Choices: B000AQ6LZW
B000AQ043W
B000APO5OM
B000AP6YJG
B000APCF62
B00O6P02JO
B000APUABO
B000AQ8WUY
B000APVLWQ
B000AQ0KKY
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "Joseph Conrad" . ?e <languages_spoken,_written_or_signed> ?e_1 . ?e_1 <pred:name> "English" .  ?e <Amazon_author_page> ?pv .  }
Program:
function: Find
inputs: English
function: Relate
dependencies: 0
inputs: languages spoken, written or signed
backward
function: Find
inputs: Joseph Conrad
function: And
dependencies: 1
2
function: QueryAttr
dependencies: 3
inputs: Amazon author page
Answer: B000APVLWQ