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

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

*GRAMMAR*
fep -> GREEN 
 tufa -> YELLOW 
 dax -> PURPLE 
 lug -> RED 
 x1 wif -> [x1] [x1] 
 u1 zup -> [u1] [u1] 
 x1 gazzer x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 