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

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

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