What what is  international parliament  office held by head of the organisation by President of the United Nations General Assembly and also which starts with letter a
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q6054776 . ?sbj wdt:P2388 wd:Q1161813 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'a')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
: Q6054776 president of the united nations general assembly: Q1161813