the protection given to a third-country national or a stateless person who does not qualify as a refugee but in respect of whom substantial grounds have been shown for believing that the person concerned, if returned to his or her country of origin, or in the case of a stateless person, to his or her country of former habitual residence, would face a real risk of suffering serious harm as defined in Article 15 of 2004/83/EC, and to whom Article 17(1) and (2) of 2004/83/EC do not apply, and is unable, or, owing to such risk, unwilling to avail himself or herself of the protection of that country