Exiv2: How to print tag values without printing the corresponding filenames

I'm using exiv2 0.27.2. I want to print the tag values of multiple webp files, but without the filename being printed. With the following command: exiv2 -g Exif.Image.Artist -Pv *.webp I get the following output: 3q2NIGNI_o.webp tomato 3qAwrJWu_o.webp orange 3qDZg9vz_o.webp cantelope I just want the tag name output, without the filename, like so: tomato orange cantelope