A gem can be biological.Logical formLearned from4 sentences. Gems can be czech.Logical formLearned from4 sentences. Some gems can be constituted-of-or-filled-with size.Logical formLearned from4 sentences. A (gem dealer) can be well-known.Logical formLearned from4 sentences. A gem may set a new-world record.Logical formLearned from4 sentences. A gem may top a record.Logical formLearned from4 sentences. A male may buy a gem.Logical formLearned from4 sentences. Gems may qualify as (blood diamonds).Logical formLearned from4 sentences. A (gem dealer) may pertain-to a world-city.Logical formLearned from4 sentences. A (gem diamond) may be discovered.Logical formLearned from4 sentences. Gems may pertain-to an (art collection).Logical formLearned from4 sentences. A gem can be smaller.Logical formLearned from4 sentences. (Gem dealers) can be international.Logical formLearned from4 sentences. A gem may undergo a demolition.Logical formLearned from4 sentences. Gems can be in colors.Logical formLearned from4 sentences.