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

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

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