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

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

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