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

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

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