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

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

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