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

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

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