Emancipation Patent is a proof of ownership which can be the subject of a contract of sale in the exercise of one’s right of ownership without violating the prohibitions embodied in Section 27 of R.A. No. 6657 relative to sale or disposition of awarded lands for a period of ten (10) years from their award because said provision of law solely applies to awarded lands under R.A. No. 6657 covered by CLOAs and not to PD 27 lands covered by EPs.