What is the type and id of the organization that has the most research staff?
return organization ;return research staff of  #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  most ;return type of  #4 ;return id of  #4 ;return #5 ,  #6
['select', 'project', 'group', 'superlative', 'project', 'project', 'union']