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

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

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