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

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

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