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

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

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