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

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

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