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

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

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