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

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

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