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

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

*GRAMMAR*
kiki -> PINK 
 wif -> PURPLE 
 lug -> RED 
 dax -> BLUE 
 x1 fep x2 -> [x1] [x2] 
 u1 tufa u2 -> [u2] [u1] [u2] [u1] [u1] [u1] [u1] [u2] 
 u1 zup u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 