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

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

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