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

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

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