Question: Which person was born in the city with the abbreviated name of Tr?
Choices: Neil Ross
William Powell
Karl Marx
Werner Herzog
Tony Leung
Jules Bass
Frederick II of Prussia
Freddie Prinze
I. M. Pei
Iain Glen
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "human" . ?e <place_of_birth> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "city" . ?e_1 <short_name> ?pv . ?pv <pred:value> "Tr" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: short name
Tr
function: FilterConcept
dependencies: 1
inputs: city
function: Relate
dependencies: 2
inputs: place of birth
backward
function: FilterConcept
dependencies: 3
inputs: human
function: What
dependencies: 4
Answer: Karl Marx