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

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

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