You undertake to defend us from and against any claim or action by a third party that the use or possession of any Content submitted or uploaded to any Site by you infringes the intellectual property of such third party ("<strong>IPR Claim</strong>"), and shall on demand indemnify us and keep us indemnified against all liabilities, losses, damages, costs, claims and expenses (including any professional costs and expenses) suffered or incurred by us arising out of or in connection with any such IPR Claim.</li> </ol> </li> <li> <strong>