*SUPPORT*
IN: tufa wif OUT: YELLOW YELLOW YELLOW YELLOW
IN: fep OUT: BLUE
IN: dax blicket tufa fep tufa OUT: YELLOW BLUE YELLOW RED
IN: dax kiki dax OUT: RED RED RED
IN: dax blicket dax dax gazzer tufa kiki tufa OUT: YELLOW RED RED GREEN YELLOW YELLOW RED
IN: dax blicket dax OUT: RED RED
IN: fep fep OUT: BLUE BLUE
IN: tufa gazzer blicket dax OUT: YELLOW RED GREEN
IN: tufa tufa gazzer OUT: YELLOW YELLOW GREEN
IN: gazzer blicket fep blicket dax tufa OUT: RED YELLOW BLUE GREEN
IN: gazzer fep OUT: GREEN BLUE
IN: gazzer blicket dax OUT: RED GREEN
IN: tufa OUT: YELLOW
IN: gazzer OUT: GREEN

*QUERY*
IN: dax fep OUT: RED BLUE
IN: dax wif OUT: RED RED RED RED
IN: dax blicket dax kiki gazzer OUT: GREEN RED GREEN RED
IN: dax dax blicket tufa OUT: RED YELLOW RED
IN: dax wif kiki fep OUT: BLUE RED RED RED RED BLUE
IN: tufa blicket dax blicket tufa wif OUT: YELLOW YELLOW YELLOW YELLOW RED YELLOW
IN: gazzer gazzer OUT: GREEN GREEN
IN: gazzer wif OUT: GREEN GREEN GREEN GREEN
IN: dax OUT: RED
IN: fep blicket gazzer fep OUT: GREEN BLUE BLUE

*GRAMMAR*
tufa -> YELLOW 
 dax -> RED 
 fep -> BLUE 
 gazzer -> GREEN 
 u1 blicket x1 -> [x1] [u1] 
 x1 wif -> [x1] [x1] [x1] [x1] 
 x1 kiki x2 -> [x2] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 