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

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

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