sentences:  Such a creature, known locally as Hairy Jack, is said to haunt the fields and village lanes around Hemswell, and there have been reported sightings throughout the county from Brigg to Spalding.Rudkin, who claimed to have seen Hairy Jack herself, formed the impression that black dogs in Lincolnshire were mainly of a gentle nature, and looked upon as a spiritual protector.Hairy Jack was also said to haunt lonely plantations, byways, and waste places where it attacked anyone passing by.