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

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

*GRAMMAR*
lug -> PURPLE 
 kiki -> BLUE 
 tufa -> YELLOW 
 wif -> GREEN 
 x1 blicket x2 -> [x2] [x1] [x1] 
 x1 gazzer -> [x1] [x1] 
 u1 zup u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 