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

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

*GRAMMAR*
gazzer -> RED 
 fep -> BLUE 
 wif -> YELLOW 
 dax -> PINK 
 u1 kiki -> [u1] [u1] [u1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 