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

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

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