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

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

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