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

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

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