A period can be extended.Logical formLearned from18 390 sentences. Periods can be extended.Logical formLearned from9 458 sentences. A version can be extended.Logical formLearned from3 202 sentences. A stay can be extended.Logical formLearned from1 843 sentences. Hours can be extended.Logical formLearned from1 555 sentences. A time can be extended.Logical formLearned from1 355 sentences. A trading can be extended.Logical formLearned from1 284 sentences. A family can be extended.Logical formLearned from1 098 sentences. A range can be extended.Logical formLearned from1 043 sentences. A vacation can be extended.Logical formLearned from967 sentences. A discussion can be extended.Logical formLearned from930 sentences. A break can be extended.Logical formLearned from889 sentences. A leave can be extended.Logical formLearned from829 sentences. Benefits can be extended.Logical formLearned from826 sentences. A (battery life) can be extended.Logical formLearned from806 sentences.