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

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

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