Complex sentence: The Daughters of Bilitis/bɪ’li: tis/(DOB), considered to be the first lesbian rights organization in the United States, was formed in San Francisco, California in 1955.
Split into simpler sentences: The Daughters of Bilitis/bɪ’li: tis/(DOB or, the Daughters), is considered to be the first lesbian rights organization in the United States. It was formed in San Francisco, California in 1955.