*SUPPORT*
IN: tufa lug tufa OUT: RED RED
IN: fep OUT: GREEN
IN: kiki OUT: YELLOW
IN: tufa dax OUT: RED PINK
IN: kiki lug fep OUT: YELLOW GREEN
IN: kiki zup fep OUT: GREEN GREEN YELLOW
IN: tufa lug fep OUT: RED GREEN
IN: dax wif kiki OUT: YELLOW YELLOW PINK PINK
IN: tufa OUT: RED
IN: dax zup fep tufa OUT: GREEN RED GREEN RED PINK
IN: dax OUT: PINK
IN: kiki tufa tufa lug tufa OUT: YELLOW RED RED RED
IN: dax lug dax OUT: PINK PINK
IN: fep zup fep lug tufa OUT: GREEN RED GREEN RED GREEN

*QUERY*
IN: fep lug dax OUT: GREEN PINK
IN: fep lug tufa OUT: GREEN RED
IN: dax wif fep OUT: GREEN GREEN PINK PINK
IN: kiki lug tufa OUT: YELLOW RED
IN: tufa zup dax lug fep OUT: PINK GREEN PINK GREEN RED
IN: dax kiki kiki OUT: PINK YELLOW YELLOW
IN: kiki zup kiki lug fep OUT: YELLOW GREEN YELLOW GREEN YELLOW
IN: fep kiki tufa lug dax OUT: GREEN YELLOW RED PINK
IN: fep zup kiki fep lug fep OUT: YELLOW GREEN GREEN YELLOW GREEN GREEN GREEN
IN: dax lug fep OUT: PINK GREEN

*GRAMMAR*
tufa -> RED 
 kiki -> YELLOW 
 fep -> GREEN 
 dax -> PINK 
 u1 lug u2 -> [u1] [u2] 
 u1 zup x1 -> [x1] [x1] [u1] 
 u1 wif x1 -> [x1] [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 