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

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

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