what country in middle america has the worlds second largest barrier reef?
return middle america ;return countries of #1 ;return barrier reefs ;return size of #3 ;return #3 where  #4 is highest ;return #3 besides  #5 ;return #6 where  #4 is highest ;return #2 that has #7
['select', 'project', 'select', 'project', 'superlative', 'discard', 'superlative', 'filter']