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

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

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