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

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

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