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

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

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