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

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

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