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

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

*GRAMMAR*
dax -> PURPLE 
 lug -> BLUE 
 kiki -> GREEN 
 tufa -> RED 
 u1 wif u2 -> [u1] [u2] 
 x1 gazzer x2 -> [x1] [x2] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 