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

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

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