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

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

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