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

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

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