Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

The site of the 1461 Battle of Mortimer's Cross lies in which English county?
battle of mortimer's cross

The counties of Alameda, El Dorado, Fresno, Marin, Mariposa, Nevada, Orange, Riverside, Sacramento, San Bernardino, San Joaquin, San Mateo, Santa Clara, Santa Cruz, Sonoma and Ventura are in what state of the USA?
santa clara, california

What was the title of the first feature film made in Cinemascope?

cinemascope