question: What are the first names and ages of all students who are playing both Football and Lacrosse?
#1 return students 
#2 return #1 playing Football 
#3 return #1 playing Lacrosse 
#4 return #1 of  both #2 and  #3 
#5 return first names of  #4 
#6 return ages of  #4 
#7 return #5 ,  #6