A parcel may explode on a fourth floor.Logical formLearned from2 sentences. A parcel may be labelled.Logical formLearned from2 sentences. Police may investigate links to a spate of (parcel bombs).Logical formLearned from2 sentences. (Parcel bombs) may be sent to organizations.Logical formLearned from2 sentences. Links can be to a spate of (parcel bombs).Logical formLearned from2 sentences. A member of staff may be injured in a (parcel bomb explosion).Logical formLearned from2 sentences. Parcels can be from families.Logical formLearned from2 sentences. An explosion may be caused by a (parcel bomb).Logical formLearned from2 sentences. A (parcel bomb) may go_off in an (information office).Logical formLearned from2 sentences. A parcel can be on a footpath.Logical formLearned from2 sentences. Parcels can be constituted-of-or-filled-with size.Logical formLearned from2 sentences. Parcels may be sent to persons by families.Logical formLearned from2 sentences. Parcels may be given to persons.Logical formLearned from2 sentences. A parcel may contain some (hand grenades).Logical formLearned from2 sentences. A (parcel bomb) can be in a (port area).Logical formLearned from2 sentences.