Original sentence: In 2010 the city filled the pool with dirt, citing problems with graffiti, vandalism and "structural gaps" affecting the skating surface.In addition, the city said that it lacked funds to staff guards at the park and claimed it had spent nearly $200,000 on the park since it opened in 1989
Edited sentence: In 2010 the city filled the pool with dirt, citing problems with graffiti, vandalism and unconfirmed structural issues affecting the skating surface.In addition, the city said that it lacked funds to staff guards at the park and claimed it had spent nearly $200,000 on the park since it opened in 1988