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

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

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