Input (grade 12): Boris Karloff (23 November 1887 â "2 February 1969), whose real name was William Henry Pratt, was an English-born actor who emigrated to Canada in 1909.
Output (grade 4): Boris Karloff a.k.a. William Henry Pratt (November 23, 1887 â "February 2, 1969), was an English actor.