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

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

*GRAMMAR*
wif -> RED 
 lug -> PINK 
 zup -> GREEN 
 kiki -> PURPLE 
 x1 fep x2 -> [x2] [x1] 
 u1 dax -> [u1] [u1] 
 u1 tufa -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 