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

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

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