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

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

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