*SUPPORT*
IN: dax gazzer kiki zup OUT: YELLOW BLUE YELLOW BLUE
IN: wif gazzer blicket OUT: GREEN RED
IN: dax fep OUT: BLUE BLUE
IN: dax gazzer blicket zup OUT: GREEN BLUE GREEN BLUE
IN: dax gazzer wif fep fep OUT: RED BLUE RED BLUE RED BLUE RED BLUE
IN: dax OUT: BLUE
IN: wif gazzer kiki zup OUT: YELLOW RED YELLOW RED
IN: kiki zup fep fep OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: blicket gazzer blicket OUT: GREEN GREEN
IN: blicket dax OUT: GREEN BLUE
IN: blicket OUT: GREEN
IN: blicket gazzer kiki OUT: YELLOW GREEN
IN: blicket gazzer wif zup zup OUT: RED GREEN RED GREEN RED GREEN RED GREEN
IN: wif gazzer wif zup OUT: RED RED RED RED

*QUERY*
IN: blicket zup OUT: GREEN GREEN
IN: kiki gazzer blicket zup OUT: GREEN YELLOW GREEN YELLOW
IN: dax wif gazzer wif zup OUT: BLUE RED RED BLUE RED RED
IN: blicket gazzer wif OUT: RED GREEN
IN: dax gazzer wif zup zup OUT: RED BLUE RED BLUE RED BLUE RED BLUE
IN: kiki wif gazzer blicket zup OUT: YELLOW GREEN RED YELLOW GREEN RED
IN: kiki gazzer wif fep zup OUT: RED YELLOW RED YELLOW RED YELLOW RED YELLOW
IN: wif fep fep OUT: RED RED RED RED
IN: wif kiki kiki gazzer kiki OUT: RED YELLOW YELLOW YELLOW
IN: wif OUT: RED

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