Complex sentence: Mrs. Cribbins has built a barbed wire fence between her yard and the Munsters'; unlike some of the Munsters' other neighbors, she knows very little about them personally but "is" aware that the family is partially vampiric.
Split into simpler sentences: Mrs. Cribbins has built a barbed wire fence between her yard and the Munsters'yard. Unlike some of the Munsters' other neighbors, she knows very little about them personally but "is" aware that the family is partially vampiric.