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

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

*GRAMMAR*
tufa -> BLUE 
 zup -> GREEN 
 fep -> RED 
 dax -> YELLOW 
 x1 kiki x2 -> [x2] [x1] 
 u1 wif -> [u1] [u1] 
 u1 blicket u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 