Wrong Result in Ch:4_Logic Operators_Lab:2

In chapter 4 logic operators - Lab2 ,whether using MongoShell or Data Explore, getting the same answer (81) ,which is showing incorrect.
MongoShell command : - db.companies.find({"$or":[{"$and": [{“founded_year”:2004},{"$or":[{“category_code”:“social”},{“category_code”:“web”}]}]}, {"$and": [{“founded_month”:“October”},{"$or":[{“category_code”:“social”},{“category_code”:“web”}]}]}]}).count()

Check the value you are passing to founded_month
You can review some sample data