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

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

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