The petition or bill should set forth clearly and distinctly the grounds relied upon by the contestant to substantiate his charge that the will is not a valid will; he need not plead evidence, but the bill should contain allegations which show the general line of his charge. It is permissable to charge contrary allegations, but it is not usual to do this.

(a) Answer. The answer to the bill should be made by the parties interested in sustaining the will; logically, it is the duty of the executors to defend its validity.1