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

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

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