Generated this list from the query file, with a little processing:
[mob@adelie queries]$ grep nat_lang uc52_queries_all.csv  | cut -d',' -f3 | sed 's/ in /\n/g' | sed 's/ of /\n/g' |  sed 's/ as /\n/g' | sed 's/ a //g'  >  ../../../sem-prov-ontologies/observation/resources/high_level_concepts.txt