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

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

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