premise: Drifters is a British sitcom that stars Jessica Knappett, Lydia Rose Bewley and Lauren O'Rourke as three female friends who live in Leeds following their graduation from university. All three actresses had previously appeared together in "The Inbetweeners Movie". Four series were broadcast, between 2013 and 2016.
hypothesis: The show featured three non partnered lesbian feature characters. 
reason: There was no mention of sexual orientation or relationship status.  Any orientation and relationship status would be possible since none was mentioned. 