Mountains can be formidable.Logical formLearned from36 sentences. Minds can be formidable.Logical formLearned from35 sentences. A terrain can be formidable.Logical formLearned from34 sentences. A piece can be formidable.Logical formLearned from34 sentences. A nuclear arsenal can be formidable.Logical formLearned from34 sentences. An enough can be formidable.Logical formLearned from34 sentences. Opposition can be formidable.Logical formLearned from34 sentences. A security can be formidable.Logical formLearned from34 sentences. Proportions can be formidable.Logical formLearned from33 sentences. An organizer can be formidable.Logical formLearned from33 sentences. A (war chest) can be formidable.Logical formLearned from33 sentences. A display can be formidable.Logical formLearned from33 sentences. A game can be formidable.Logical formLearned from33 sentences. A pack can be formidable.Logical formLearned from32 sentences. A package can be formidable.Logical formLearned from32 sentences.