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

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

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