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

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

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