An email can be blank.Logical formLearned from324 sentences. Eyes can be blank.Logical formLearned from323 sentences. Discs can be blank.Logical formLearned from315 sentences. Sheets can be blank.Logical formLearned from294 sentences. An area can be blank.Logical formLearned from290 sentences. Dvds can be blank.Logical formLearned from279 sentences. A tape can be blank.Logical formLearned from274 sentences. Passports can be blank.Logical formLearned from271 sentences. Tapes can be blank.Logical formLearned from270 sentences. A disc can be blank.Logical formLearned from268 sentences. A book can be blank.Logical formLearned from268 sentences. A screen can be blank.Logical formLearned from251 sentences. An expression can be blank.Logical formLearned from250 sentences. A dvd can be blank.Logical formLearned from249 sentences. A document can be blank.Logical formLearned from234 sentences.