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

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

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