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

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

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