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

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

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