The sentences “...it still offers a different and valuable ...

The sentences “...it still offers a different and valuable vantage point — especially for readers who like to keep an eye on the life as well as the art” (lines 63-66) and “The gentle romantic blossomed into a wicked ironist whose authorial intrusions, jump cuts and sheer mischief influenced American experimentalists like John Barth and Donald Barthelme” (lines 51-56) contain, respectively, relative clauses which are