def generate_nodes_clasification(bpmn_diagram):
        nodes_classification = {}
        classification_element = "Element"
        classification_start_event = "Start Event"
        classification_end_event = "End Event"
        task_list = bpmn_diagram.get_nodes(consts.Consts.task)
        for element in task_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        subprocess_list = bpmn_diagram.get_nodes(consts.Consts.subprocess)
        for element in subprocess_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        complex_gateway_list = bpmn_diagram.get_nodes(consts.Consts.complex_gateway)
        for element in complex_gateway_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        event_based_gateway_list = bpmn_diagram.get_nodes(consts.Consts.event_based_gateway)
        for element in event_based_gateway_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        inclusive_gateway_list = bpmn_diagram.get_nodes(consts.Consts.inclusive_gateway)
        for element in inclusive_gateway_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        exclusive_gateway_list = bpmn_diagram.get_nodes(consts.Consts.exclusive_gateway)
        for element in exclusive_gateway_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        parallel_gateway_list = bpmn_diagram.get_nodes(consts.Consts.parallel_gateway)
        for element in parallel_gateway_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        start_event_list = bpmn_diagram.get_nodes(consts.Consts.start_event)
        for element in start_event_list:
            classification_labels = [classification_element, classification_start_event]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        intermediate_catch_event_list = bpmn_diagram.get_nodes(consts.Consts.intermediate_catch_event)
        for element in intermediate_catch_event_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        end_event_list = bpmn_diagram.get_nodes(consts.Consts.end_event)
        for element in end_event_list:
            classification_labels = [classification_element, classification_end_event]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        intermediate_throw_event_list = bpmn_diagram.get_nodes(consts.Consts.intermediate_throw_event)
        for element in intermediate_throw_event_list:
            classification_labels = [classification_element]
            BpmnImportUtils.split_join_classification(element, classification_labels, nodes_classification)
        return nodes_classification