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

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

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