What is the id and name of the enzyme that can interact with the most medicines as an activator?
return enzymes ;return medicines #1 can interact with  ;return #2 as an activator ;return number of  #3 for each #1 ;return #1 where #4 is  highest ;return id of #5 ;return name of #5 ;return #6 ,  #7
['select', 'project', 'filter', 'group', 'superlative', 'project', 'project', 'union']