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

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

*GRAMMAR*
lug -> PURPLE 
 fep -> PINK 
 wif -> GREEN 
 dax -> RED 
 u1 zup -> [u1] [u1] [u1] 
 u1 gazzer -> [u1] [u1] [u1] [u1] 
 u1 kiki u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 