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

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

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