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

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

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