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

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

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