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

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

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