Access posts via WP API

I need to access all my translated posts via WP API for a single page application which consumes it.
I can access all of the posts but the problem is that I cannot find any way to related posts to each other, for instance if I create a post in German lets assume its the master/parent post then create another post in English, I would like to see something in the json on the English post like parent_l10n_post_id or something which leads back to the German one.
Is there any way to achieve this ?

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