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

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

*GRAMMAR*
dax -> RED 
 wif -> PINK 
 tufa -> YELLOW 
 zup -> BLUE 
 x1 fep -> [x1] [x1] 
 x1 kiki x2 -> [x2] [x1] [x2] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 