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

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

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