Given the task definition and input, reply with output. In this task, you are given two sentences in the English language (Sentence 1 and Sentence 2). Your task is to identify the connecting word between the two sentences.

Sentence 1:The Lake Federsee area has been declared a Special Protection Area under the European Union Directive on the Conservation of Wild Birds and the Habitats Directive . Sentence 2:Furthermore , the area is part of the European ecology network Natura 2000 .
furthermore