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

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

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