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

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

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