Question: What currency is used in a sovereign state which is the country of Dragon Ball (the one whose subreddit is dbz)'s origin ?
Choices: Urawa Red Diamonds
TV Tokyo
Indian rupee
Sapporo
pound sterling
Waseda University
Sony
Japanese yen
Tokyo Yakult Swallows
euro
SPARQL: SELECT DISTINCT ?e WHERE { ?e <pred:instance_of> ?c . ?c <pred:name> "currency" . ?e <country> ?e_1 . ?e_1 <pred:instance_of> ?c_1 . ?c_1 <pred:name> "sovereign state" . ?e_2 <country_of_origin> ?e_1 . ?e_2 <pred:name> "Dragon Ball" . ?e_2 <subreddit> ?pv . ?pv <pred:value> "dbz" .   }
Program:
function: Find
inputs: Dragon Ball
function: FilterStr
dependencies: 0
inputs: subreddit
dbz
function: Relate
dependencies: 1
inputs: country of origin
forward
function: FilterConcept
dependencies: 2
inputs: sovereign state
function: Relate
dependencies: 3
inputs: country
backward
function: FilterConcept
dependencies: 4
inputs: currency
function: What
dependencies: 5
Answer: Japanese yen