anchor.diff:  * _Document:talks_ - talks is the root node, coming from Mongo Document Collection, with an id that also comes from MongoDB. Non nested Documents are converted into regular properties, such as "room", "topics" and "timeslot" (a common String array).
   * _Document:session_ - Nested Document. Inner key/values are converted into Node properties. Note that the id incoming from root *talks* collection is propagated to this Node. Also, note that this node is labelled as its direct document key, in this case, *session*.
   * _Document:speaker_ - also nested Document.
  +
  +Also, for every created node, a property names **_ts**, representing the timestamp of the creation in MongoBD, is added to the node.
   
   **Created Relationships:**
   
  
positive.code: mongo-connector -v -m localhost:27017 -t http://localhost:7474/db/data -d neo4j_doc_manager
  ```
  
  This activates __verbose__ level. You can have a better explanation about what are the failure points by seraching for __OperationFailed__ on __mongo-connector.log__ file.
  
  
  
negative.code: * _Document:speaker_ - also nested Document.
  * _Document:conference_ - a Node that is nested to _session_.
  
  Also, for every created node, a property names **_ts**, representing the timestamp of the creation in MongoBD, is added to the node.
  
  **Created Relationships:**
  
  * A relationship that connects *talks* and *session* nodes, called **talks_session**,
  