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

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

*GRAMMAR*
zup -> PURPLE 
 dax -> YELLOW 
 tufa -> GREEN 
 kiki -> RED 
 x1 lug x2 -> [x1] [x2] 
 x1 wif -> [x1] [x1] 
 x1 fep x2 -> [x1] [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 