Question: The mall, in which General Growth Properties sold one third ownership in 2011, plays concerts during which summer months?
Context: Pierre Bossier Mall is an enclosed shopping mall located at the intersection of Interstate 20 and Airline Drive (Louisiana Highway 3105) in Bossier City, Louisiana.  The mall, as is the city it is located in, is named after early settler Pierre Bossier.  The mall was purchased by General Growth Properties, who built and sold it in the 1980s, for $26 million in October 1998.  It is currently owned and managed by Rouse Properties, one of the largest mall owners in the United States.  Its anchor stores are J. C. Penney, Sears, Dillard's, Virginia College, and Forever 21, formerly Stage, established with the sale in 1994 by Horace Ladymon of the Beall-Ladymon Corporation.  The mall had a theater, The Bossier 6.  It was opened September 10, 1982 and was operated by AMC.  It closed in 2000. Windward Mall is an enclosed shopping center located in Kāneʻ ohe, Hawaiʻ i, anchored by Macy's, Sears, and Regal Cinemas.  The 530000 sqft mall, owned by Kamehameha Schools, was managed by General Growth Properties until 2011 when General Growth Properties and Jones Lang LaSalle entered an agreement to transfer managership to Jones Lang LaSalle. Superstition Springs Center is a shopping mall located in Mesa, Arizona.  It is owned by Macerich, a subsidiary of The Macerich Company.  The mall features an outdoor amphitheatre and a fountain that converts into a stage featuring free concerts from May to August on Saturday evenings. Lynnhaven Mall is an enclosed super-regional shopping mall in Virginia Beach, Virginia, USA.  It opened in August 1981.  At 1170000 sqft of gross leasable area, it is the largest mall in the Hampton Roads metropolitan area of southeastern Virginia and one of the largest malls on the East Coast.  The mall contains more than 180 stores, including Dillard's, JCPenney, and Macy's as anchor stores.  Other stores at the mall include Apple, Barnes & Noble, Dick's Sporting Goods, XXI Forever, H&M, and Old Navy.  Dave & Busters is also a recent addition to the mall and region.  An 18 screen AMC Theatres complex anchors an open-air pedestrian plaza called "The Inlet".  The mall is managed by General Growth Properties of Chicago, Illinois. Lakeside Mall is a Taubman-built super-regional full-line shopping mall located in the northeastern Metro Detroit suburb of Sterling Heights, Michigan.  The mall is located on M-59 (Hall Road) between Hayes and Schoenherr Roads.  Lakeside Mall features five anchor stores: JCPenney, Lord & Taylor, two Macy's, and Sears, as well as the first H&M in Michigan.  The mall also features more than 150 stores on two levels, as well as a food court.  General Growth Properties owns and manages the mall, which is the largest mall in the state of Michigan based on floor area. Westwood Mall is an enclosed shopping mall serving the community of Jackson, Michigan owned and managed by Rouse Properties, one of the largest mall owners in the United States.  It opened in 1972 and features three anchor stores: JCPenney, Walmart and Younkers.  It is managed by Rouse Properties, a division of General Growth Properties. Arrowhead Towne Center is a regional enclosed shopping mall located in Glendale, Arizona (west suburban Phoenix).  The mall is managed by Macerich.  It is anchored by Macy's, Sears, Dillard's, JCPenney, Forever 21, Dick's Sporting Goods, and AMC Theatres and is home to 132 tenants.  It is currently the only enclosed shopping mall in Phoenix's western suburbs (referred to as the "West Valley").  The mall opened in October 1993 on land formerly occupied by an orange grove, located at Bell Road and 75th Avenue, and was jointly developed and owned by Westcor and General Growth Properties (the former which owned a two-thirds share and managed the mall, and the latter which owned a one-third share).  In 2002, Westcor was acquired by Macerich, who continues to manage the mall today.  In 2011, GGP sold its 1/3 ownership in the mall (along with its 1/3 ownership of Superstition Springs Center in Mesa), with Macerich assuming full ownership. Three Rivers Mall is an enclosed shopping mall located in Kelso, Washington that opened in 1987, on the site of a former golf course, adjacent to Intersate 5.  Previously owned by General Growth Properties, the mall was one of 30 malls that was spun off into Rouse Properties, the current mall owner, in 2012.  The mall has three anchors: JCPenney, Sportsman's Warehouse, & Regal Cinemas.  Its original main anchors were The Bon Marche (which became Macy's; closed 2017), JCPenney, Sears (closed 2013), and Emporium (closed 2001). Southland Mall is a major shopping mall in Hayward, California, owned and managed by Rouse Properties after General Growth Properties spun off the mall and some of its other properties to form Rouse in 2012.  The mall is primarily a single-level structure, with a small lower level beneath anchor retailer JC Penney, and free standing restaurants in the outlying parking areas.  The center is located off I-880 at Winton Avenue, at the western end of the city.  The mall currently houses anchor stores like, Sears, Macy's, and JC Penney.  Other businesses include Ross, Foot Locker, Forever 21, Gamestop, Applebee's, Ashley Stewart and Bath & Body Works, among others.  The mall has a food court and a TimeOut Arcade. The Bayshore Mall is an indoor shopping mall located in Eureka, California owned and managed by Rouse Properties, a former division of General Growth Properties, one of the largest mall owners in the United States.  It is named for its close proximity to Humboldt Bay.  The large shopping facility is the only major mall located on the coast north of the San Francisco Bay Area, securing Eureka as the trading center for the entire far North Coast.
Answer: May to August