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

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

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