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

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

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