Premise: Her stage play, The Mousetrap, holds the record for the longest initial run in the world, opening at the Ambassadors Theatre in London on 25 November 1952, and as of 2007 is still running after more than 20,000 performances.

Hypothesis: Her play started to run in November 25 1952 at the Ambassadors Theater and it was still running in 2007. 
Relation: entailment