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

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

*GRAMMAR*
tufa -> GREEN 
 dax -> RED 
 wif -> PURPLE 
 gazzer -> BLUE 
 u1 fep x1 -> [x1] [u1] [x1] 
 u1 lug u2 -> [u1] [u2] 
 u1 blicket -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 