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

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

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