On March 7, 1958, the spouses Holland and Wealthy sold to Aimee, Billy and Chris a parcel of land. The Deed of Sale contained the following covenant against eviction, to wit:

That the vendor is the absolute owner of land...the ownership thereof being evidenced by an absolute deed of sale executed in her favor by registered owner Gary.

That the vendor warrants valid title to and ownership of said parcel of land and further warrants to defend the property herein sold and conveyed and unto the vendees, the heirs , and assignees, from any and all claims of any persons whatsoever.

On April 21, 1961, the Register of Deeds and X,Inc. filed a case for cancellation of Original Certificate of Title No. 1526 issued in the name of Gary (predecessor-in-interest of Holland and Wealthy-vendors) om February 26, 1958, on the ground that the property covered by said title is already previously registered issued in the name of X, Inc. Aimee, Billy and Chris as vendees filed their opposition to the said petition.

On June 10, 1964, an Order was issued in the said case directing the Register of Deeds to cancel OCT No. 1526 the same being null and void.

On August 31, 1956, Aimee, Billy and Chris, filed a case against their vendors Holland and Wealthy for the recovery of the value of the property sold to them plus damages on the ground that the latter have violated the vendors warranty against eviction.

The complaint among others, alleged that in said Case No. 4252, the respondents were summoned and/or given their day in court at the instance of Aimee, Billy and Chris. The vendors are made parties to the suit at the instance of the vendees by asking the vendor to be made co-defendants.

IS THERE CONCURRENCE OF THE REQUISITES OF EVICTION