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

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

*GRAMMAR*
zup -> YELLOW 
 dax -> GREEN 
 fep -> PURPLE 
 tufa -> BLUE 
 x1 wif -> [x1] [x1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 lug -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 