Question: How many sister cities does Philadelphia have?

Is "Renovations were made to Sister Cities Park in mid-2011 and on May 10, 2012, SCP was reopened and currently features an interactive fountain honoring Philadelphia's ten sister and friendship cities, a cafe and visitor's center, children's play area, outdoor garden, and boat pond, as well as pavilion built to environmentally friendly standards." the correct answer?
Available options:
1). yes
2). no
1).