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

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

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