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

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

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