A (wrap technique) can be elusive.Logical formLearned from1 sentences. Breakthroughs may proven elusive.Logical formLearned from1 sentences. (Population estimates) may remain elusive.Logical formLearned from1 sentences. A drink may remain elusive.Logical formLearned from1 sentences. Evidence of a (dorm incident) may prove elusive.Logical formLearned from1 sentences. Gravitational waves can be elusive.Logical formLearned from1 sentences. Rewards can be elusive.Logical formLearned from1 sentences. A (knockout blow) may remain elusive.Logical formLearned from1 sentences. An information can be elusive that something-is-the-case.Logical formLearned from1 sentences. Tastes can be elusive.Logical formLearned from1 sentences. (Rocket launchers) can be elusive.Logical formLearned from1 sentences. A toll of a probe may remain elusive.Logical formLearned from1 sentences. A technical assistance can be elusive.Logical formLearned from1 sentences. Stated goals may prove elusive.Logical formLearned from1 sentences. A tune may prove elusive.Logical formLearned from1 sentences.