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

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

*GRAMMAR*
tufa -> PURPLE 
 zup -> YELLOW 
 wif -> RED 
 fep -> BLUE 
 x1 dax u1 -> [x1] [x1] [u1] [u1] [x1] [x1] 
 x1 kiki x2 -> [x2] [x1] [x2] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 