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

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

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