A contradictory life gets a compelling presentation in Brenda Murphy’s uniquely intricate tribute to her mother, Two Sore Legs. Performed as a one-act, one-woman show by local actress Maria Connolly and directed by Martin Lynch, the production arrives at Belfast’s Lyric in the wake of rave reviews at Edinburgh’s Fringe Festival and a successful tour of Northern Ireland and Monaghan. Little wonder, then, that the relatively full auditorium is alive with excitable chatter and anticipation before the show has even begun. And the prominence of light brown wood on stage, in the coffin and chair that lie there, hints at…