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

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

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