Complex sentence: Our Lady of Mercy College, Heidelberg, is a Catholic Girls' secondary school situated in Melbourne, Australia and conducted by the Sisters of Mercy, a congregation of religious Sisters founded in Dublin, Ireland, by Catherine McAuley.
Split into simpler sentences: Our Lady of Mercy College, Heidelberg (O.L.M.C), is a Catholic, secondary school for girls, situated in Melbourne, Australia. The college is conducted by the Sisters of Mercy, a congregation of religious Sisters founded in Dublin, Ireland, by Catherine McAuley.