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

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

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