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

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

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