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

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

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