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

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

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