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

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

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