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

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

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