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

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

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