Question: Which IPv4 routing prefix designates the public university where  R. Lee Ermey studied?
Choices: 13.40.0.0/13
193.63.252.0/23
193.50.166.0/24
193.60.192.0/22
128.83.0.0/16
88.96.189.168/29
138.190.0.0/16
143.210.0.0/16
155.111.0.0/16
29.0.0.0/8
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "public university" . ?e_1 <educated_at> ?e . ?e_1 <pred:name> "R. Lee Ermey" .  ?e <IPv4_routing_prefix> ?pv .  }
Program:
function: Find
inputs: R. Lee Ermey
function: Relate
dependencies: 0
inputs: educated at
forward
function: FilterConcept
dependencies: 1
inputs: public university
function: QueryAttr
dependencies: 2
inputs: IPv4 routing prefix
Answer: 128.83.0.0/16