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

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

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