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

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

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