A (trial balloon) can be subtle.Logical formLearned from2 sentences. Potions can be subtle.Logical formLearned from2 sentences. Findings of a disease can be subtle.Logical formLearned from2 sentences. Findings of sms can be subtle.Logical formLearned from2 sentences. Defects can be subtle.Logical formLearned from2 sentences. Rearrangements can be subtle.Logical formLearned from2 sentences. A divergence can be subtle.Logical formLearned from2 sentences. A country can be subtle.Logical formLearned from2 sentences. A negotiator can be subtle.Logical formLearned from2 sentences. A disrespect can be subtle.Logical formLearned from2 sentences. (Health problems) can be subtle.Logical formLearned from2 sentences. A (feature motion) can be subtle.Logical formLearned from2 sentences. Photos can be subtle.Logical formLearned from2 sentences. Colours of stars can be subtle.Logical formLearned from2 sentences. An algorithm can be subtle.Logical formLearned from2 sentences.