G creates a trust naming ABC Bank as trustee. The trust provides that B, Gs daughter, will receive all trust income for life, with remainder to Bs issue. To what extent does G own the trust under the circumstances below?

1. Trustee may revest title to any and all trust assets in G.
2. Same as a., except that the trustee may only revest trust assets in G with Bs consent.
3. G may modify the trust for any reason other than for Gs own benefit.
4. G may revoke the trust, but the power to revoke may not be exercised for the forty year period beginning on the date the trust is executed