pre_text: Item 2. Properties Our corporate headquarters are located in Culver City, California, where we occupy facilities totaling approximately 8,000 square feet on a monthto-month basis pursuant to a Shared Services Agreement with NantWorks. We use these facilities for administration, sales and marketing, research and development, engineering, client support, and professional services. In addition, we have 5 U.S. locations across four states and one international location. Our key facilities include the following: United States Boston, Massachusetts Panama City, Florida Philadelphia, Pennsylvania Phoenix, Arizona International ◦ Belfast, Northern Ireland Note that on February 3, 2020, the Company completed the sale of its Connected Care business which includes the Panama City, Florida property. We believe that our facilities are adequate to meet our needs in the near term, and that, if needed, suitable additional space will be available to accommodate any expansion of our operations. The following table outlines our facilities location, square footage, and use:
table: City State Country Sq ft Type Business Nature/Use
table: Boston MA USA 31,752 Lease Administrative, sales, client support, R&D, engineering, professional services
table: Panama City FL USA 51,288 Lease Administrative, sales, client support, R&D, engineering, professional services
table: Belfast NI UK 15,500 Lease R&D, engineering, administrative
table: Phoenix AZ USA 4,865 Lease Data Centre
table: Philadelphia PA USA 14,183 Lease Administrative, sales, client support, R&D, engineering, professional services
table: 117,588
question: Analyse this data from a financial earnings document. What is the average square feet of the company's facilities in Belfast and Phoenix?