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

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

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