*SUPPORT*
IN: lug gazzer wif lug OUT: BLUE BLUE GREEN BLUE GREEN
IN: kiki lug wif lug tufa kiki OUT: PURPLE BLUE PURPLE BLUE PURPLE BLUE
IN: fep dax OUT: YELLOW YELLOW
IN: lug wif kiki OUT: PURPLE BLUE BLUE
IN: gazzer fep OUT: GREEN YELLOW
IN: gazzer kiki wif fep OUT: YELLOW GREEN PURPLE GREEN PURPLE
IN: lug wif lug dax OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: lug dax OUT: BLUE BLUE
IN: kiki lug OUT: PURPLE BLUE
IN: kiki dax dax OUT: PURPLE PURPLE PURPLE PURPLE
IN: gazzer tufa lug wif lug OUT: BLUE BLUE GREEN BLUE GREEN
IN: fep tufa gazzer OUT: GREEN YELLOW
IN: fep wif lug OUT: BLUE YELLOW YELLOW
IN: kiki OUT: PURPLE

*QUERY*
IN: kiki fep wif gazzer tufa gazzer lug OUT: GREEN BLUE GREEN PURPLE YELLOW PURPLE YELLOW
IN: lug kiki tufa lug wif lug OUT: BLUE BLUE BLUE PURPLE BLUE BLUE PURPLE
IN: lug lug OUT: BLUE BLUE
IN: fep OUT: YELLOW
IN: gazzer tufa gazzer dax OUT: GREEN GREEN GREEN GREEN
IN: gazzer lug OUT: GREEN BLUE
IN: lug OUT: BLUE
IN: gazzer OUT: GREEN
IN: gazzer gazzer dax dax OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: fep kiki OUT: YELLOW PURPLE

*GRAMMAR*
gazzer -> GREEN 
 kiki -> PURPLE 
 lug -> BLUE 
 fep -> YELLOW 
 x1 wif u1 -> [u1] [x1] [x1] 
 x1 dax -> [x1] [x1] 
 x1 tufa x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 