5100
Peter valued Catherine and married her again ( this time officially ) at Saint Isaac 's Cathedral in Saint Petersburg on 19 February 1712 .
 person: Catherine; location: Saint Isaac 's Cathedral; location: Saint Petersburg
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Catherine; location: Saint Isaac 's Cathedral; location: Saint Petersburg