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

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

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