(a) General rule
The value of the gross estate shall include the value of any property to which this section applies in which the decedent had a qualifying income interest for life.
(b) Property to which this section applies This section applies to any property if
(1) a deduction was allowed with respect to the transfer of such property to the decedent
(A) under section
2056 by reason of subsection (b)(7) thereof, or
(B) under section
2523 by reason of subsection (f) thereof, and
(2) section
2519 (relating to dispositions of certain life estates) did not apply with respect to a disposition by the decedent of part or all of such property.
(c) Property treated as having passed from decedent
For purposes of this chapter and chapter 13, property includible in the gross estate of the decedent under subsection (a) shall be treated as property passing from the decedent.