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

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

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