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

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

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