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

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

*GRAMMAR*
wif -> GREEN 
 dax -> BLUE 
 lug -> YELLOW 
 gazzer -> PURPLE 
 x1 blicket -> [x1] [x1] [x1] 
 x1 tufa u1 -> [u1] [x1] 
 x1 fep x2 -> [x1] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 