310 IF MID$(LIN$,I,3)=" A " THEN B$=MID$(LIN$,I+3,1): IF B$="A" OR B$="E" OR B$="I" OR B$="O" OR B$="U" THEN LIN$=LEFT$(LIN$,I+1)+"N"+MID$(LIN$,I+2)
320 NEXT I
330 FOR I = 1 TO LEN(LIN$)-2
340 IF MID$(LIN$,I,4)=" AN " THEN B$=MID$(LIN$,I+4,1): IF B$="A" OR B$="E" OR B$="I" OR B$= "O" OR B$="U" THEN 350 ELSE LIN$=LEFT$(LIN$,I+1)+MID$(LIN$,I+3)