Complex sentence: In 1723 the church was found to be irreparable and the parishioners petitioned again.Having obtained an act of Parliament, they set up a temporary building in the churchyard, and began to rebuild the church.
Split into simpler sentences: In 1723 the church was found to be irreparable. The parishioners petitioned again, and having obtained an act of Parliament, they set up a temporary building in the churchyard, and began to rebuild the church.