What is the {Open source hardware} with the {MAX(voltage)} whose {use} is {FPGA prototype}  ?
Tell me which FPGA prototype open source hardware has the highest voltage.
Which FPGA prototype open source hardware has the highest voltage?
SELECT ?n WHERE { ?n property:voltage ?g . ?n rdf:type ontology:open_source_hardware . ?n property:use resource:FPGA_prototyping }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q159172>.

?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2436>.
?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj1.

?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?ent .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P366> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q5426992> .

}
ORDER BY DESC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q159172 . ?ent wdt:P2436 ?obj . ?ent wdt:P366 wd:Q5426992 } ORDER BY DESC(?obj)LIMIT 5 
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