Question: Merely Mary Ann starred Janet Gaynor, recipient of the first Academy Award for Best Actress, which is awarded to honor what?
Sentence (from "Merely Mary Ann"): Gaynor and Farrell made almost a dozen films together, including Frank Borzage's classics "Seventh Heaven" (1927), "Street Angel" (1928), and "Lucky Star" (1929); Gaynor won the first Academy Award for Best Actress for the first two and F. W. Murnau's "Sunrise".
Relevant evidence: Yes