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

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

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