MediaObject, as:Link, LDP-RS & LDP-NS

Hello,

We have problem to solve in Social WG which I attempted to define and
research on on this wiki page
* https://www.w3.org/wiki/Socialwg/MediaObject

Related User Story also helps to understand it
*
https://www.w3.org/wiki/Socialwg/Social_API/More_user_stories#Liking_a_Photo_found_in_an_Album

1. Jessy browses throught Ralph's album of photos titled "Visiting Bay Area"
2. Jessy Likes one of the photos titled "4/20 in Golden Gate Park"
3. Ralph now can see Jessy's like when visiting this Photo page

Possibly also relevant thought from my last email to Social WG
* https://lists.w3.org/Archives/Public/public-socialweb/2015Mar/0204.html

We may need, in LDP terminology[1]
* Linked Data Platform RDF Source (LDP-RS) - which has *Like* affordance
and provides count of likes
* Linked Data Platform Non-RDF Source (LDP-NR) - multiple one's which
provide encoding of that photo in various sizes and media types (jpeg,
png etc.)

Hopefully someone already solved this problem and we just need to find
such existing this solution.

Thank your for any pointers and suggestions :)

Cheers!