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

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

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