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

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

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