We learn how to explore sample queries and then invoke them from a script as links into the api. github 
See More WikiData Demo
Universities of main programming language authors. wiki
SELECT ?lang ?langLabel ?human ?humanLabel ?educatedat ?educatedatLabel ?coords { ?lang wdt:P31/wdt:P279* wd:Q9143 . ?human wdt:P31 wd:Q5 . { ?lang wdt:P287 ?human } UNION { ?lang wdt:P170 ?human } UNION { ?lang wdt:P943 ?human } UNION { ?lang wdt:P178 ?human } . ?human wdt:P69 ?educatedat . ?educatedat wdt:P625 ?coords . SERVICE wikibase:label { bd:serviceParam wikibase:language "en,fr" } } LIMIT 1000
When done working, try Solo Lineup Browser
http://ward.dojo.fed.wiki/assets/pages/wikidata-demo/aspects.html HEIGHT 500
Our first pass at building aspect graphs has a nested structure mimicking the graph structure which might be usefully abstracted into a shared function or some other mechanism that exploits regularity. github