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

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

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