Complex sentence: The last confirmed tiger was an adult female, killed on Sep.27,1937, at Sumbar Kima, western Bali; since then, claims of sighting have been made, but without proof, mostly by forestry officers, in 1952,1970 and 1972.
Split into simpler sentences: The last confirmed tiger sighting was of an adult female, killed on Sep.27,1937, at Sumbar Kima, in western Bali. Since then, claims of sighting have been made, but without proof, mostly by forestry officers, in 1952,1970 and 1972.