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

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

*GRAMMAR*
blicket -> RED 
 zup -> YELLOW 
 fep -> GREEN 
 wif -> BLUE 
 x1 dax x2 -> [x2] [x1] 
 x1 gazzer u1 -> [x1] [u1] 
 u1 lug u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 