PLease HELP!

Draw a UML communication diagram according to the following descriptions. A method has a void return type if none is specified.

The system communication starts with a call to method receive() of object mm of class MessageManager. The mm object performs the following three actions in that method: o First, the parse() method of a MIMEParser object is called in order to create an instance variable object ob of type ObableIF. * The parse() method calls the following three methods of the object builder of type MAPIBuilder in sequence before creating a local variable object outMsg of type OutboundMessageIF. With this outMsg object, its send(s4: String) method is called. The argument s4 is the returned result of the upperCase method. Please indicate a {new} or {transient} notation for the ob and outMsg objects in the diagram. removeSpace(s1: String) correctSpelling(s2: String) upperCase(s3: String): String o Next, the method clone():ObableIF is called to create a cloned object ob_new from ob. o Last, the method notify(ob_new:ObableIF) of class Multicaster is called. The notify(ob_new:ObableIF) method of the Multicaster does the followings: It calls method inform(ob_new:ObableIF) iteratively and passes the ob_new object to several instances of Ob_NewIF. It then calls the encryptMsg(text: MimeMsg) method of class EmailEncrypter, which activates two asynchronous threads to run concurrently as below: One thread calls method validateMIMEStructure() of an object of MIMEParser. The other calls method getKey(to: String) of object km of KeyManager.