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

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

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