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

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

*GRAMMAR*
tufa -> PINK 
 lug -> BLUE 
 dax -> RED 
 wif -> PURPLE 
 u1 fep x1 -> [u1] [x1] 
 x1 zup x2 -> [x1] [x2] 
 u1 kiki u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 