Identify the unfair aspect with respect to the sentence extracted from an online Terms of Service:
```
however , by submitting user material you hereby grant headspace an irrevocable , perpetual , non-exclusive , royalty free , worldwide license to use , telecast , copy , perform , display , edit , distribute and otherwise exploit the user material you post on the products , or any portion thereof , and any ideas , concepts , or know how contained therein , with or without attribution , and without the requirement of any permission from or payment to you or to any other person or entity , in any manner ( including , without limitation , for commercial , publicity , trade , promotional , or advertising purposes ) and in any and all media now known or hereafter devised , and to prepare derivative works of , or incorporate into other works , such user material , and to grant and authorize sublicenses of the foregoing without any payment of money or any other form of consideration to you or to any third party . 

```
. OPTIONS: ['Jurisdiction' 'Choice of law' 'Contract by using'
 'Unilateral termination' 'Content removal' 'Unilateral change'
 'Arbitration' 'Limitation of liability' 'None'].