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

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

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