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

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

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