Question: What is the DOI prefix for University of California, Irvine?
Choices: 10.22617
10.2104
10.21980
10.24968
10.5204
10.18275
10.14439
10.15365
10.15353
10.18695
SPARQL: SELECT DISTINCT ?pv WHERE { ?e <pred:name> "University of California, Irvine" . ?e <DOI_prefix> ?pv .  }
Program:
function: Find
inputs: University of California, Irvine
function: QueryAttr
dependencies: 0
inputs: DOI prefix
Answer: 10.21980