Difference between URI,URN and URL

• URI can be either URL or URN or both.
• All URLs are URIs,but not nececarily all all URIs are URLs,it can be either URL or URN or both

Example:

•  Name: Swati----URN.
•  Location/Address: street no -44,flat no-26,xyz colony,new city,old state,bigcountry-URL.