Question: Since when was an 'agent', whose headquarter location lies in Dallas (the one whose demonym is Dallasite) at 12500 TI Boulevard, using 157.87.0.0/16 as the IPv4 routing prefix ?
Choices: 2015-08-12
1787-03-07
1973-01-01
1985-03-18
2006-11-28
1945-11-09
1946-07-04
1969-12-22
1991-12-16
2013-10-04
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "agent" . ?e <headquarters_location> ?e_1 . ?e_1 <pred:name> "Dallas" . ?e_1 <demonym> ?pv_1 . ?pv_1 <pred:value> "Dallasite" . [ <pred:fact_h> ?e ; <pred:fact_r> <headquarters_location> ; <pred:fact_t> ?e_1 ] <located_at_street_address_(DEPRECATED)> ?qpv_1 . ?qpv_1 <pred:value> "12500 TI Boulevard" . ?e <IPv4_routing_prefix> ?pv . ?pv <pred:value> "157.87.0.0/16" . [ <pred:fact_h> ?e ; <pred:fact_r> <IPv4_routing_prefix> ; <pred:fact_t> ?pv ] <start_time> ?qpv .  }
Program:
function: Find
inputs: Dallas
function: FilterStr
dependencies: 0
inputs: demonym
Dallasite
function: Relate
dependencies: 1
inputs: headquarters location
backward
function: QFilterStr
dependencies: 2
inputs: located at street address (DEPRECATED)
12500 TI Boulevard
function: FilterConcept
dependencies: 3
inputs: agent
function: QueryAttrQualifier
dependencies: 4
inputs: IPv4 routing prefix
157.87.0.0/16
start time
Answer: 1991-12-16