Question: Which work institutions of the Andrew Schally is the  alma mater of the Mara Eugenia Rojas Correa ?
SPARQL:
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Andrew_Schally> <http://dbpedia.org/property/workInstitutions> ?uri. <http://dbpedia.org/resource/María_Eugenia_Rojas_Correa> <http://dbpedia.org/property/almaMater> ?uri}