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

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

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