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

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

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