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

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

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