Given the task definition and input, reply with output. In this task, you are given a text of article and corresponding title of an article. Your task is to generate label "yes" if headline (title) is right for article, otherwise generate "no".

Article: a southern african security summit due to begin wednesday was deferred by a day amid speculation that zimbabwe 's political rivals could finally ink a long awaited power-sharing deal . Title: southern african summit deferred amid hopes of zimbabwe pact

yes