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

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

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