English to Hungarian Law/Patents Law: Contract(s) Terms and Conditions of a promotion

Már volt ez, de a szövegkörnyezet valamivel más. Több variáción töprengek, de nem tudom eldönteni melyik illene ide. Főleg hogy a szövegből nem annyira világos hogy miféle pályázatról is volna szó. A pályázók saját fényképe lenne az anyag amit itt értenek a „Your Contribution” alatt? Szóval, gondoltam lehetne pl. „az Ön hozzájárulása”, vagy pályamunka, vagy közremüködés. Ha van valakinek valami jobb ötlete, hálás volnék a tippért.

By submitting your photograph (Your "Contribution") to this XYZ promotion ("Promotion") you warrant represent and undertake that (i) Your Contribution is a true picture of you, and (ii) Your Contribution was taken by you or that you have the permission of the person who took the photograph and/or the copyright owner to submit the photograph, and (iii) Your Contribution is an original work which will not infringe the copyright, privacy or any other rights of any other person or organization and (iv) Your Contribution does not contain any unlawful or objectionable material including any material which is unlawful, defamatory, obscene, abusive, threatening, harmful or offensive (v) Your Contribution is free from any form of advertisement, promotion or other endorsement.
You give XYZ Corporation, the producer X Limited and both of their respective licensees, affiliates and successors and assigns an unlimited, irrevocable, non-terminable, worldwide, royalty-free, perpetual, non-exclusive right for your Contribution submitted to the Promotion to be reproduced, modified, exploited and published in any manner in relation to the Promotion.