Question: What state or insular area capital in the US is located in the Central Time Zone and is also the working location of Tom Johnson, educated at University of Michigan ?
Choices: Grammy Award for Best Latin Pop Album
Paul Robeson
Cape Town
Columbia
Billy Boyd
Cheyenne
Legally Blonde
Middlesex County
Springfield
neo-classical metal
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "state or insular area capital in the United States" . ?e <located_in_time_zone> ?e_1 . ?e_1 <pred:name> "Central Time Zone" .  ?e_2 <work_location> ?e . ?e_2 <pred:name> "Tom Johnson" . ?e_2 <educated_at> ?e_3 . ?e_3 <pred:name> "University of Michigan" .  }
Program:
function: Find
inputs: Central Time Zone
function: Relate
dependencies: 0
inputs: located in time zone
backward
function: FilterConcept
dependencies: 1
inputs: state or insular area capital in the United States
function: Find
inputs: University of Michigan
function: Relate
dependencies: 3
inputs: educated at
backward
function: Find
inputs: Tom Johnson
function: And
dependencies: 4
5
function: Relate
dependencies: 6
inputs: work location
forward
function: FilterConcept
dependencies: 7
inputs: state or insular area capital in the United States
function: And
dependencies: 2
8
function: What
dependencies: 9
Answer: Springfield