In 1978, Ben Charles and his wife, Florence; their son, Daniel; and Daniel's wife, Denise, acquired title to a 5000 acre farm. The deed ran to Ben Charles and Florence Charles, the father and mother, as joint tenants with the right of survivorship, and to Daniel Charles and Denise Charles, the son and his wife, as joint tenants with the right of survivorship. Florence Charles died in 1988, and Ben Charles married Ingrid Charles two years later. By his will Ben Charles left his entire estate to Ingrid Charles.. When Ben Charles died in 2001, Daniel and Denise Charles assumed complete control of the farm. State the interest in the farm, if any, of Ingrid, Daniel, and Denise upon death of Ben Charles. Please discuss.