flowchart
      A@{ shape: titledCylinder, label: "title"  }@ --> B@{ shape: titledCylinder, label: "title B"  }@

      C@{ shape: titledCylinder, label: "title with very long text but on single line"  }@ -->  D@{ shape: titledCylinder, label: "title \n with \n multiple \n lines \n of n text"  }@
     A --> D