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

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

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