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

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

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