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

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

*GRAMMAR*
dax -> GREEN 
 wif -> BLUE 
 gazzer -> RED 
 kiki -> PINK 
 x1 zup u1 -> [u1] [x1] [u1] 
 x1 fep x2 -> [x2] [x1] [x2] [x1] 
 u1 tufa x1 -> [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 