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

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

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