A chemistry can be on a (bike trail).Logical formLearned from8 sentences. Trails may consider a (bike trip).Logical formLearned from8 sentences. A detective can be on a trail.Logical formLearned from8 sentences. A trail can be constituted-of-or-filled-with sparks.Logical formLearned from8 sentences. A trail can be to the right.Logical formLearned from8 sentences. Boss may pertain-to a (trail drive).Logical formLearned from8 sentences. Neutrinoes may leave a trail.Logical formLearned from8 sentences. A trail of an investigation may lead from a federal building.Logical formLearned from8 sentences. A male may leave behind a trail of friends.Logical formLearned from8 sentences. Riders may arrive on a (snowmobile trail).Logical formLearned from8 sentences. A (snowmobile trail) can be opened.Logical formLearned from8 sentences. A (paper trail) may read.Logical formLearned from8 sentences. Instruments may sense (heat trails).Logical formLearned from8 sentences. A trail can be archaeological.Logical formLearned from8 sentences. A (paper trail) can be automatic.Logical formLearned from8 sentences.