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

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

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