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

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

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