Question: At what point in time was the business whose official website is http://www.amtrak.com (the language of this statement is English)  operating income -1121584000 United States dollars?
Choices: 2005-12-01
2000-08-01
2016-12-22
1740
2016-07-09
2018-01-15
1810-01-01
1880-01-01
2015
1864-01-01
SPARQL: SELECT DISTINCT ?qpv WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "business" . ?e <official_website> ?pv_1 . ?pv_1 <pred:value> "http://www.amtrak.com" . [ <pred:fact_h> ?e ; <pred:fact_r> <official_website> ; <pred:fact_t> ?pv_1 ] <language_of_work_or_name> ?qpv_1 . ?qpv_1 <pred:value> "English" . ?e <operating_income> ?pv . ?pv <pred:unit> "United States dollar" . ?pv <pred:value> "-1121584000"^^xsd:double . [ <pred:fact_h> ?e ; <pred:fact_r> <operating_income> ; <pred:fact_t> ?pv ] <point_in_time> ?qpv .  }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: official website
http://www.amtrak.com
function: QFilterStr
dependencies: 1
inputs: language of work or name
English
function: FilterConcept
dependencies: 2
inputs: business
function: QueryAttrQualifier
dependencies: 3
inputs: operating income
-1121584000 United States dollar
point in time
Answer: 2015