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

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

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