What is the highest paying job that requires a certificate op aptiude for secondary school teaching
select ?ent where { ?ent wdt:P31 wd:Q28640 . ?ent wdt:P3618 ?obj . ?ent wdt:P4968 wd:Q2946825 } ORDER BY DESC(?obj)LIMIT 5 
profession: Q28640 certificate of aptitude for secondary school teaching: Q2946825