Task: Text Matching
Input (English): Sentence1: My first sonogram said I was 7 weeks pregnant due date 3/22. Next appointment (5 weeks later) sono measured bby at 13weeks. Duedate changed to 3/15. Y? 
 Sentence2: Hello doctor I had sex on 14th  june with ex and 18th with husband. My usg showed due date as Mrch 23rd. How can I know who is the father?
Output (English): Dissimilar