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

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

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