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

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

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