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

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

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