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

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

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