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

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

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