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

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

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