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

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

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