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

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

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