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

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

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