What is the {railway company} with the {MIN(operating income)} whose {industry} is {rail transport}  ?
Name the railway company that has the lowest income.
which railway company in transport have least operating income?
SELECT ?f WHERE { ?f property:operating_income ?c . ?f rdf:type ontology:railway_company . ?f property:industry resource:rail_transport }
select ?ent where {
?ent <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q249556>.

?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/P3362>.
?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/P452> .
?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q3565868> .

}
ORDER BY ASC(?obj1)
LIMIT 5
select ?ent where { ?ent wdt:P31 wd:Q249556 . ?ent wdt:P3362 ?obj . ?ent wdt:P452 wd:Q3565868} ORDER BY ASC(?obj)LIMIT 5 
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