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

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

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