Bing appears to be testing inserting labels that describe the search outcome itemizing, on the left aspect bar of the search outcome itemizing. It appears the label will assist outline what the search outcome itemizing is about, perhaps itemizing out a few of its entities.
Frank Sandtmann noticed this and posted this screenshot on Mastodon (click on to enlarge):
Frank mentioned, “Presumably these packing containers symbolize entities and foremost key phrases of those pages.” “At first look I don´t see the benefit for normal customers. So, perhaps that is giving a glimpse into how Bing organizes outcomes? Perhaps it isn’t meant for the general public?”
What do you suppose these are?
Discussion board dialogue at Mastodon.