For the following problems , provide an answer in three parts. For part (1), state the estates by the conveyance before the application of the common law Rule Against Perpetuities; for part (2), state the estates after the application of the rule if it is applicable; and for part (3), provide an explanation of your answer. Explain your answers fully, including the how and why of the rule application.

For these questions, assume that the jurisdiction in question follows the common law Rule Against Perpetuities, the Rule in Shelley's Case, the Doctrine of Worthier Title, and the Doctrine of Destructibility.

1. "O to A for life, then to A's widow for life, then to oldest child of A who survives A's widow for their life, then to A's grandchildren and their heirs." At the time of the conveyance, A has been predeceased by his wife, A has 3 children, but A has no grandchildren.

2. "O to A for life, then A's heirs." At the time of the conveyance, A is married and has 2 children.

Please keep the format simple and use these terms specifically when giving answers:

Present Estates:

Fee Simple Absolute

Life Estate

Leasehold Estate

Future Estates:

Remainder

Reversion

Executory Interest

Possibility of Reverter

Right of Entry