G creates a trust which provides that all income will be sprinkled among A, B and C in whatever proportions the trustee, in his sole discretion, determines. When the youngest of A, B and C reaches age 30, the trust shall terminate, and the remainder will be divided amongst them equally. The trustee also has the power to invade corpus for A, B or C as necessary for their health, education or maintenance. Any such invasion will not be applied against the share of the trust that the beneficiary will ultimately receive. To what extent is G the owner of the trust in the circumstances described below?

1. G is the trustee.
2. Q (Gs brother) and ABC Bank (in which G has no direct or indirect interest) are co-trustees.
3. Same as b., except that G retains the power to change trustees.
4. Same as b., except that G determines how income will be distributed, and the trustees act in accordance with that determination. (Note that G has no authority under the trust instrument itself.)
5. Assume that income is to be distributed equally to A, B, and C, except that disproportionate income distributions may be made as necessary for the health, education and maintenance of the beneficiaries. Assume in the alternative that:
   1. G is the trustee.
   2. Q is the trustee.