Derek Moran
TRUST: Legal rights that apply where one person holds and deals with property on behalf of or for the benefit of another person.
CONSTRUCTIVE Trust: A type of trust that may arise, where one person contributes, to the worth of another person's property. The court may find that it is a constructive trust, if the property owner is unjustly enriched, and the contributor receives no benefit. The effect of a constructive trust, is that the owner of the property, may have to hold the property, in trust for the contributor.
http://www.attorneygeneral.jus.gov.on.ca/english/glossary/?id=448