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

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

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