The first words of a nonsense paragraph invented to try to capture all of the possible vowels that any speaker might use in different accents. It's not perfect, but it's the standard and we have a lot of recordings that use it: https://accent.gmu.edu/browse_language.php?function=detail&speakerid=145
Full paragraph: Please call Stella. Ask her to bring these things with her from the store: Six spoons of fresh snow peas, five thick slabs of blue cheese, and maybe a snack for her brother Bob. We also need a small plastic snake and a big toy frog for the kids. She can scoop these things into three red bags, and we will go meet her Wednesday at the train station.
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