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

*QUERY*
IN: zup dax wif OUT: GREEN GREEN BLUE
IN: kiki gazzer OUT: PINK PINK PINK PINK PINK
IN: tufa kiki OUT: RED PINK
IN: zup tufa zup dax zup OUT: GREEN RED GREEN GREEN GREEN
IN: zup zup lug tufa OUT: RED GREEN GREEN RED
IN: wif wif lug tufa OUT: RED BLUE BLUE RED
IN: tufa OUT: RED
IN: kiki dax kiki OUT: PINK PINK PINK
IN: tufa zup lug tufa OUT: RED RED GREEN RED
IN: zup dax zup OUT: GREEN GREEN GREEN

*GRAMMAR*
kiki -> PINK 
 wif -> BLUE 
 zup -> GREEN 
 tufa -> RED 
 u1 dax u2 -> [u1] [u1] [u2] 
 x1 lug x2 -> [x2] [x1] [x2] 
 x1 gazzer -> [x1] [x1] [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 