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

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

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