A male may curl_up on a chest.Logical formLearned from7 sentences. A person may curl_up to a person.Logical formLearned from7 sentences. A male may curl_up into a fetal position.Logical formLearned from7 sentences. A boy may curl_up in a back of a (pickup truck).Logical formLearned from7 sentences. Leaves may curl_up.Logical formLearned from6 sentences. Ends may curl_up.Logical formLearned from6 sentences. A person may curl_up in a dark.Logical formLearned from6 sentences. A male may curl_up against a female.Logical formLearned from6 sentences. A smile may curl_up corners of a mouth.Logical formLearned from6 sentences. A female may curl_up into a male.Logical formLearned from6 sentences. A male may curl_up legs to a chest.Logical formLearned from6 sentences. A time may curl_up in a lap.Logical formLearned from6 sentences. A tail may curl_up in a (question mark).Logical formLearned from6 sentences. Lips may curl_up in a grin.Logical formLearned from6 sentences. A female may curl_up feet.Logical formLearned from6 sentences.