From the post (as usual, all mentions of "this Facebook post" refers to the Corvus Belli post):
We draw 1 MeteoZon Research Center and 1 Sahn of the Sultanate buildings by Plastcraft Games! To participate, you just need to comment on this Facebook post, or on Twitter using the hashtag #InfinityPlastcraft answering the following question: “Why do you want them for your game table?” Everyone who posts a comment during today, February 20th, will participate in the draw. We'll announce the winner (February 21st) Good luck to everyone!
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