*SUPPORT*
IN: dax dax OUT: RED RED
IN: dax tufa OUT: RED BLUE
IN: zup OUT: PINK
IN: zup lug fep tufa blicket tufa OUT: PINK PINK BLUE BLUE
IN: wif OUT: YELLOW
IN: dax OUT: RED
IN: dax zup lug OUT: RED PINK PINK
IN: zup dax blicket dax OUT: PINK RED RED
IN: wif lug fep zup lug OUT: YELLOW YELLOW PINK PINK
IN: zup blicket dax OUT: RED PINK
IN: dax lug OUT: RED RED
IN: zup zup lug fep zup blicket wif OUT: PINK PINK PINK YELLOW PINK
IN: zup lug fep zup blicket tufa OUT: PINK PINK BLUE PINK
IN: zup zup fep wif blicket tufa OUT: PINK PINK BLUE YELLOW

*QUERY*
IN: zup fep tufa OUT: PINK BLUE
IN: tufa tufa blicket zup fep dax OUT: BLUE PINK BLUE RED
IN: dax blicket wif OUT: YELLOW RED
IN: wif blicket dax OUT: RED YELLOW
IN: tufa blicket zup OUT: PINK BLUE
IN: dax wif blicket tufa OUT: RED BLUE YELLOW
IN: tufa lug OUT: BLUE BLUE
IN: wif lug OUT: YELLOW YELLOW
IN: tufa OUT: BLUE
IN: tufa fep zup blicket wif OUT: BLUE YELLOW PINK

*GRAMMAR*
tufa -> BLUE 
 zup -> PINK 
 wif -> YELLOW 
 dax -> RED 
 u1 blicket u2 -> [u2] [u1] 
 x1 fep x2 -> [x1] [x2] 
 u1 lug -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 