*SUPPORT*
IN: zup dax fep zup kiki OUT: PINK RED GREEN PINK PINK RED GREEN PINK
IN: zup dax wif zup OUT: PINK RED PINK RED
IN: dax wif tufa OUT: RED YELLOW RED
IN: fep OUT: GREEN
IN: tufa dax OUT: YELLOW RED
IN: fep tufa gazzer tufa OUT: GREEN YELLOW YELLOW
IN: dax wif dax kiki OUT: RED RED RED RED RED RED
IN: dax OUT: RED
IN: zup wif fep OUT: PINK GREEN PINK
IN: dax gazzer zup gazzer fep OUT: RED PINK GREEN
IN: fep dax wif dax OUT: GREEN RED RED RED
IN: dax kiki kiki OUT: RED RED RED RED
IN: tufa gazzer zup kiki OUT: YELLOW PINK YELLOW PINK
IN: tufa wif zup kiki OUT: YELLOW PINK YELLOW YELLOW PINK YELLOW

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

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