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

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

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