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

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

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