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

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

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