Sentence 1: Paul decided to throw a costume party. 
 Sentence 3: In preparation for the party, Paul bought several decorations 
 Sentence 4:  In addition, Paul had food and drinks catered 
 Sentence 5:  Paul could not wait for the costume party to begin 
 Option 1: Paul sent out several invitations to his friends and family. 
 Option 2: Paul forgot to send out invitations to his friends and family.