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

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

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