rdf-editor-component.component.ts
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	import { Component, OnInit } from '@angular/core';
	import * as N3 from "node_modules/n3/src";
	import {CrossrefEditorDataServiceService} from '../crossref-editor-data-service.service';
	import {Subscription} from 'rxjs';

	@Component({
	selector: 'app-rdf-editor-component',
	templateUrl: './rdf-editor-component.component.html',
	styleUrls: ['./rdf-editor-component.component.scss']
	})
	export class RdfEditorComponentComponent implements OnInit {

	nodeSub: Subscription;
	textGeneseWriter;
	textGeneseTriples: string;

	constructor( public dataService: CrossrefEditorDataServiceService) {
	}

	ngOnInit() {
	this.textGeneseWriter = new N3.Writer({ prefixes: { data: 'http://rdfh.ch/projects/0068#' } });

	this.nodeSub = this.dataService.clickedNodeEvent.subscribe(node => {
	this.writeSthToTextGenese(node.iri);
	//...
	this.checkOutTextGenese();
	});
	}

	writeSthToTextGenese(iri, prefix?: any) {
	const {DataFactory} = N3;
	const {namedNode, literal, defaultGraph, quad} = DataFactory;
	const newIri = iri+'textgenese_0'
	this.textGeneseWriter.addQuad(
	namedNode(newIri),
	namedNode('http://www.w3.org/1999/02/22-rdf-syntax-ns#type'),
	namedNode('tln:textGenese!!!')
	);
	}

	checkOutTextGenese() {
	this.textGeneseWriter.end((error, result) => {
	console.log('typeof ', typeof result, ' result ', result);
	this.textGeneseTriples = result;
	});
	}
	}