what is the 2nd most largest mountain in the world?
return the  world ;return mountains of #1 ;return size of #2 ;return #2 where  #3 is highest ;return #2 besides  #4 ;return size of #5 ;return #5 where  #6 is highest
['select', 'project', 'project', 'superlative', 'discard', 'project', 'superlative']