56863
In the securities market buying in refers to a process by which the buyer of securities , whose seller fails to deliver the securities contract ed for , can ' buy in ' the securities from a third party with the defaulting seller to make good .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None