*SUPPORT*
IN: dax lug dax OUT: YELLOW YELLOW
IN: gazzer blicket tufa OUT: RED PURPLE
IN: gazzer blicket zup OUT: GREEN PURPLE
IN: zup kiki dax gazzer blicket gazzer OUT: YELLOW PURPLE PURPLE YELLOW PURPLE PURPLE GREEN GREEN
IN: gazzer OUT: PURPLE
IN: gazzer kiki zup OUT: GREEN GREEN PURPLE PURPLE
IN: tufa kiki zup lug dax blicket dax OUT: YELLOW YELLOW GREEN YELLOW YELLOW GREEN RED RED
IN: dax lug zup lug zup OUT: GREEN GREEN YELLOW
IN: zup blicket tufa OUT: RED GREEN
IN: gazzer blicket gazzer OUT: PURPLE PURPLE
IN: gazzer tufa kiki gazzer OUT: PURPLE PURPLE PURPLE RED RED
IN: zup OUT: GREEN
IN: gazzer blicket dax OUT: YELLOW PURPLE
IN: dax lug dax kiki dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW

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

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