Given two noun phrases (arguments) and relationship between them, form a sentence that expresses theses arguments with the given relationship.

Relationship: 'be bear of', Argument/Subject 1: 'christ', Argument/Subject 2: 'virgin mary'
We believe that Jesus Christ was begotten by the Holy Spirit , born of the Virgin Mary , and is true God and true human .

Relationship: 'be president of', Argument/Subject 1: 'george', Argument/Subject 2: 'unite state'
Among the speakers at the dedicatory service was Mr. George H. Stuart , president of the United States Christian Commission .

Relationship: 'appoint', Argument/Subject 1: 'board', Argument/Subject 2: 'treasurer'
2.1 The Treasurer shall be appointed by the Board with the recommendation of the President and shall exercise the powers and duties of that office under the supervision of the President .