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

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

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