*SUPPORT*
IN: wif OUT: BLUE
IN: zup fep zup OUT: PURPLE PURPLE
IN: lug fep tufa OUT: RED YELLOW
IN: tufa zup OUT: RED PURPLE
IN: zup kiki zup OUT: PURPLE PURPLE
IN: wif kiki lug OUT: BLUE YELLOW
IN: zup fep zup gazzer wif OUT: PURPLE PURPLE BLUE
IN: wif lug gazzer wif OUT: BLUE YELLOW BLUE
IN: zup gazzer tufa OUT: PURPLE RED
IN: zup wif fep zup OUT: PURPLE PURPLE BLUE
IN: lug OUT: YELLOW
IN: zup fep lug OUT: YELLOW PURPLE
IN: zup tufa kiki wif gazzer zup gazzer tufa OUT: PURPLE RED BLUE PURPLE RED
IN: zup tufa kiki zup gazzer wif OUT: PURPLE RED PURPLE BLUE

*QUERY*
IN: wif kiki wif OUT: BLUE BLUE
IN: lug kiki lug OUT: YELLOW YELLOW
IN: zup kiki lug OUT: PURPLE YELLOW
IN: wif kiki tufa OUT: BLUE RED
IN: tufa kiki tufa OUT: RED RED
IN: tufa OUT: RED
IN: zup lug tufa fep lug OUT: PURPLE YELLOW YELLOW RED
IN: zup zup kiki tufa OUT: PURPLE PURPLE RED
IN: zup kiki wif OUT: PURPLE BLUE
IN: lug wif gazzer zup OUT: YELLOW BLUE PURPLE

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