Darkness may frighten persons.Logical formLearned from177 sentences. Darkness can be cool.Logical formLearned from165 sentences. Darkness may descend.Logical formLearned from164 sentences. Darkness can be sudden.Logical formLearned from160 sentences. A light may shine in darkness.Logical formLearned from152 sentences. A person can be in darkness.Logical formLearned from152 sentences. Darkness can be perpetual.Logical formLearned from151 sentences. Darkness may halt play.Logical formLearned from146 sentences. Darkness may approach.Logical formLearned from139 sentences. A period can be constituted-of-or-filled-with darkness.Logical formLearned from131 sentences. Darkness can be black.Logical formLearned from128 sentences. Space may manifest darkness.Logical formLearned from122 sentences. Darkness can be quiet.Logical formLearned from112 sentences. Darkness can be impenetrable.Logical formLearned from111 sentences. Persons can be in darkness.Logical formLearned from110 sentences.