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

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

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