Question: What metropolitan area is located in the state of the United States having the pronunciation audio En-us-Maryland.ogg?
Choices: Metro Detroit
Greater St. Louis
Portland metropolitan area
Anne Arundel County
New Orleans metropolitan area
San Francisco Bay Area
Appalachian Mountains
Prince George's County
Howard County
Baltimore metropolitan area
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "metropolitan area" . ?e <located_in_the_administrative_territorial_entity> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "state of the United States" . ?e_1 <pronunciation_audio> ?pv . ?pv <pred:value> "En-us-Maryland.ogg" .   }
Program:
function: FindAll
function: FilterStr
dependencies: 0
inputs: pronunciation audio
En-us-Maryland.ogg
function: FilterConcept
dependencies: 1
inputs: state of the United States
function: Relate
dependencies: 2
inputs: located in the administrative territorial entity
backward
function: FilterConcept
dependencies: 3
inputs: metropolitan area
function: What
dependencies: 4
Answer: Baltimore metropolitan area