Where, as occurred here, decedent and her spouse transferred property to a trust, retained life interests in the property, and directed the trustee to transfer the property to a relative upon the death of decedent or her spouse, whichever is the last to occur, the Division of Taxation did not err by imposing an inheritance transfer tax on the full value of the property because decedent and her spouse held the property as tenants by the entirety, and the transfer was intended to take effect "at or after" decedent's death. N.J.S.A. 54:34-1(c).