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

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

*GRAMMAR*
wif -> BLUE 
 dax -> GREEN 
 gazzer -> RED 
 zup -> PURPLE 
 x1 fep x2 -> [x2] [x2] [x1] [x2] 
 x1 lug -> [x1] [x1] [x1] [x1] [x1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 