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

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

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