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

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

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