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

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

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