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

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

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