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

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

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