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

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

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