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

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

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