
Are the following mentions coreferent?:
<m> undisclosed </m> in Hewlett - Packard Engineers Deal for EYP Hewlett - Packard agreed to buy EYP Mission Critical Facilities, a data center engineering firm, for an undisclosed sum in a deal that will provide an exit for TA Associates. 
</s>
<m> said </m> in It is too early to tell what impact Hewlett-Packard Co.'s decision to acquire Electronic Data Systems Corp. will have on EDS'operations in South Charleston, an EDS spokesman said. Bill Ritz, EDS spokesman, pointed out that Hewlett-Packard's acquisition of EDS still needs the approval of regulators and EDS'stockholders. 