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

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

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