Partial Termination of and Nineteenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of September 17, 2019, among certain subsidiaries of Senior Housing Properties Trust, as Landlord, and certain subsidiaries of the Company, as Tenant

THIS PARTIAL TERMINATION OF AND NINETEENTH AMENDMENT TO AMENDED AND RESTATED MASTER LEASE AGREEMENT (LEASE NO. 1) (this “Amendment”) is made and entered into as of September 17, 2019, by and among each of the parties identified on the signature pages hereof as a landlord (collectively, “Landlord”) and each of the parties identified on the signature pages hereof as a tenant (jointly and severally, “Tenant”).

WHEREAS, pursuant to the terms of that certain Amended and Restated Master Lease Agreement (Lease No. 1), dated as of August 4, 2009, as amended by that certain Partial Termination of and First Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of October 1, 2009, that certain Second Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of November 17, 2009, that certain Third Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of December 10, 2009, that certain Partial Termination of and Fourth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of August 1, 2010, that certain Fifth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of May 1, 2011, that certain Partial Termination of and Sixth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of June 1, 2011, that certain Seventh Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of June 20, 2011, that certain Eighth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of August 31, 2012, that certain Partial Termination of and Ninth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of August 1, 2013, that certain Partial Termination of and Tenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of January 22, 2014, that certain Partial Termination of and Eleventh Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of October 1, 2014, that certain Partial Termination of and Twelfth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of October 31, 2014, that certain Partial Termination of and Thirteenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of February 17, 2015, that certain Partial Termination of and Fourteenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of August 1, 2015, that certain Partial Termination of and Fifteenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of December 29, 2015, that certain Partial Termination of and Sixteenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of June 1, 2018, that certain Partial Termination of and Seventeenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of May 1, 2019, and that certain Eighteenth Amendment to Amended and Restated Master Lease Agreement (Lease No. 1), dated as of May, 2019 (as so amended, “Amended Lease No. 1”), Landlord leases to Tenant, and Tenant leases from Landlord, the Leased Property (this and other capitalized terms used but not otherwise defined herein having the meanings given such terms in Amended Lease No. 1), all as more particularly described in Amended Lease No. 1; and

WHEREAS, Amended Lease No. 1 was further modified by that certain Transaction Agreement, dated as of April 1, 2019, between Five Star Senior Living Inc., on behalf of itself and certain of its subsidiaries, and Senior Housing Properties Trust, on behalf of itself and certain of its subsidiaries (the “Transaction Agreement”); and

WHEREAS, simultaneously herewith, SPTIHS Properties Trust is selling the real property and related improvements known as (i) Prairie Ridge Care & Rehabilitation located at 608 Prairie Street, Mediapolis, Iowa, as more particularly described on Exhibit A-22 to Amended Lease No. 1, (ii) Union Park Health Services located at 2401 E. 8^th Street, Des Moines, Iowa, as more particularly described on Exhibit A-20 to Amended Lease No. 1, (iii) Ashland Care Center located at 1700 Furnace Street, Ashland, Nebraska, as more particularly described on Exhibit A-32 to Amended Lease No. 1, (iv) Blue Hill Care Center located at 414 North Wilson Street, P.O. Box 156, Blue Hill, Nebraska, as more particularly described on Exhibit A-33 to Amended Lease No. 1, (v) Central City Care Center located at 2720 South 17^th Avenue, Central City, Nebraska, as more particularly described on Exhibit A-34 to Amended Lease No. 1, (vi) Gretna Community Living Center located at 700 South Highway 6, Gretna, Nebraska, as more particularly described on Exhibit A-36 to Amended Lease No. 1, (vii) Sutherland Care Center located at 333 Maple Street, P.O. Box 307, Sutherland, Nebraska, as more particularly described on Exhibit A-37 to Amended Lease No. 1 and (viii) Waverly Care Center located at 11041 North 137^th Street, Waverly, Nebraska, as more particularly described on Exhibit A-38 to Amended Lease No. 1 (collectively, the “Midwest Properties”); and