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

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

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