It means they are preparing for the Solicitor exam wherein you have to undertake a three year internship like program called articled clerkship under a solicitor. You'll have to work under the solicitor for three years like a CA article and then write the exam. The exam is generally intensive and the clearance rate is pretty low..Have heard that you need contacts to get signed up as an article and even clear the exam because people fail in a subject or two by a thin margin.