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

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

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