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

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

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