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

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

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