Zodiacs love matching?

A heatmap, based on more than 9000 couples, registered in vk.com social network, popular in Russia. This data had been scarped, using special vk.com API, where it’s possible to fetch users personal info (if he chose not to hide it). Also API provide ways to request list of friends of a person, list of users in the groups etc.. I am not sure if similar API exists for facebook?

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