Microbial mats can be areas of sediment.Logical formLearned from2 sentences. A mat may emit an odor.Logical formLearned from2 sentences. A mat can be with a core.Logical formLearned from2 sentences. Mats can be coated.Logical formLearned from2 sentences. Mats can be rectangular.Logical formLearned from2 sentences. A mat can be thin.Logical formLearned from2 sentences. A mat can be in a series..Logical formLearned from2 sentences. A plant may grow in mats.Logical formLearned from2 sentences. A mat may be placed on the ground.Logical formLearned from2 sentences. Cannons can be constituted-of-or-filled-with (bamboo mats).Logical formLearned from2 sentences. An exception may pertain-to a mat.Logical formLearned from2 sentences. Mats can be metallic.Logical formLearned from2 sentences. (Algal mats) can be thick.Logical formLearned from2 sentences. Mats may cover a floor.Logical formLearned from2 sentences. Mats can be full-size.Logical formLearned from2 sentences.