In Bailey v. Eagle Mountain Tel. Co.' the supreme court in an opinion by Justice Swepston affirmed the chancellor of Knox County who had sustained defendant's demurrer to a specific performance action because he regarded the following language in complainant's claim of title as creating a fee simple determinable in the grantee.
"In consideration of love and interest we have in Education, we this day deed, transfer, and convey a certain lot or parcel of land .... To have and to hold for school purposes ... so long as the aforesaid lot of land is used for the aforesaid purpose."
As pointed out in the opinion, the language in this deed is that which has been traditionally used in creating a determinable fee.
Thomas G. Roady, Jr.,
Real Property -- 1958 Tennessee Survey,
11 Vanderbilt Law Review
Available at: https://scholarship.law.vanderbilt.edu/vlr/vol11/iss4/26