I'll be super brief.
There's an important distinction to be made. There are non-practising entities, or NPEs, that essentially have patent portfolios or IP portfolios that they use for the purposes of extolling rents—licences or otherwise. I would make a distinction between an NPE and a troll.
A troll is someone who essentially has acquired vague or ambiguous patents or intellectual property licences purely for the purposes of shaking someone down for rents that they might not have been able to get in a courtroom but are frightening enough to the university or innovator that they're willing to pay, simply because of the generalized nature of what they own.
To complete your question, we're looking at this issue in great detail, both in terms of its incidence in Canada and the degree to which our rules can help prevent some of those bad behaviours, but more importantly, on the strategy side, the degree to which our firms are IP-savvy in their capacity to prevent it themselves and be defensive at the outset.