Task: Text Simplification
Input (English): david william donald cameron -lrb- born 9 october 1966 -rrb- is the leader of the conservative party and leader of her majesty 's loyal opposition in the united kingdom.
Output (English): david william donald cameron -lrb- born on october 9th 1966 -rrb- is the leader of the conservative party and leader of her majesty 's loyal opposition in the united kingdom.