Suppose The popular TV show 'Friends' aired its final episode on May 6, 2004, after a successful 10-season run. The show, created by David Crane and Marta Kauffman, followed the lives of six friends living in New York City and became a cultural phenomenon during its time on air.
Can we infer that "All six main characters in 'Friends' were related by blood"? Yes, no, or maybe?