text: public String toString() {if (getChildren() == null || getChildren().size() == 0)return "<any field='" + this.field + "'  matchelements="+ this.minimumMatchingmElements + "/>";StringBuilder sb = new StringBuilder();sb.append("<any field='").append(this.field).append("'  matchelements=").append(this.minimumMatchingmElements).append('>');for (QueryNode clause : getChildren()) {sb.append("\n");sb.append(clause.toString());}sb.append("\n</any>");return sb.toString();}