*SUPPORT*
IN: blicket OUT: GREEN
IN: fep lug blicket OUT: GREEN PURPLE
IN: zup blicket tufa OUT: RED GREEN GREEN
IN: zup tufa OUT: RED RED
IN: zup dax OUT: RED YELLOW
IN: blicket dax tufa OUT: GREEN YELLOW YELLOW
IN: zup lug dax OUT: YELLOW RED
IN: zup OUT: RED
IN: fep lug fep OUT: PURPLE PURPLE
IN: zup wif fep tufa OUT: PURPLE PURPLE RED RED PURPLE PURPLE RED
IN: dax lug blicket OUT: GREEN YELLOW
IN: dax tufa OUT: YELLOW YELLOW
IN: fep OUT: PURPLE
IN: zup zup dax tufa OUT: RED RED YELLOW YELLOW

*QUERY*
IN: fep wif fep tufa OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: fep tufa OUT: PURPLE PURPLE
IN: fep zup lug blicket OUT: PURPLE GREEN RED
IN: blicket wif zup OUT: RED GREEN GREEN RED GREEN
IN: fep lug dax OUT: YELLOW PURPLE
IN: dax OUT: YELLOW
IN: fep zup wif fep lug dax OUT: PURPLE YELLOW PURPLE RED RED YELLOW PURPLE RED
IN: dax blicket wif zup OUT: YELLOW RED GREEN GREEN RED GREEN
IN: fep blicket wif zup lug zup OUT: PURPLE RED RED GREEN GREEN RED RED GREEN
IN: fep zup lug zup OUT: PURPLE RED RED

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