A committee works for two years and is composed of 4 members each year, 2 of which are from the following 4 judges: F, G, H and I, and the other 2 members are from the following 3 scientists: V, Y and Z  Each year, the committee is chaired by one member  A member who chairs the first year must retire from the committee during the second year  The person who chairs the second year must be a member of the committee during the first year  The committee members must meet the following conditions: G and V cannot be members of the committee in the same year  H and Y cannot be members of this committee in the same year
Each year, only one of I and V is a member of this committee
G