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

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

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