*SUPPORT*
IN: tufa lug fep OUT: YELLOW GREEN YELLOW GREEN YELLOW GREEN
IN: gazzer blicket tufa OUT: RED YELLOW
IN: gazzer OUT: RED
IN: tufa gazzer fep OUT: YELLOW RED YELLOW RED YELLOW RED
IN: dax tufa fep blicket dax OUT: PINK YELLOW PINK YELLOW PINK YELLOW PINK
IN: dax dax OUT: PINK PINK
IN: tufa tufa OUT: YELLOW YELLOW
IN: gazzer fep OUT: RED RED RED
IN: lug dax fep blicket gazzer OUT: GREEN PINK GREEN PINK GREEN PINK RED
IN: lug fep OUT: GREEN GREEN GREEN
IN: lug OUT: GREEN
IN: dax tufa dax gazzer blicket dax OUT: PINK YELLOW PINK RED PINK
IN: tufa dax blicket lug OUT: YELLOW PINK GREEN
IN: tufa lug OUT: YELLOW GREEN

*QUERY*
IN: dax fep OUT: PINK PINK PINK
IN: dax tufa fep OUT: PINK YELLOW PINK YELLOW PINK YELLOW
IN: dax OUT: PINK
IN: dax blicket tufa blicket gazzer blicket tufa OUT: PINK YELLOW RED YELLOW
IN: dax blicket dax OUT: PINK PINK
IN: tufa gazzer OUT: YELLOW RED
IN: gazzer gazzer fep blicket lug OUT: RED RED RED RED RED RED GREEN
IN: lug tufa dax blicket lug OUT: GREEN YELLOW PINK GREEN
IN: gazzer tufa fep OUT: RED YELLOW RED YELLOW RED YELLOW
IN: tufa OUT: YELLOW

*GRAMMAR*
dax -> PINK 
 tufa -> YELLOW 
 lug -> GREEN 
 gazzer -> RED 
 x1 blicket u1 -> [x1] [u1] 
 x1 fep -> [x1] [x1] [x1] 
 x1 zup x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 