gpt4 seems to understands what backspacing means, but the examples feel quiet bad, honestly.

the chat was named "red and blue deletion and substitution"

> write a sentence that contains red^Wblue

    The sentence you're looking for, with the use of the "^W" deletion notation, would be: "The sky was a vibrant blue after the red was deleted." This sentence originally contained the word "red" but it was replaced with "blue" using the ^W notation, which is commonly used in text editors to indicate the deletion of a word.

> again

    Sure, here's another sentence using the ^W deletion notation: "She chose the blue dress, having initially considered the red^W." In this sentence, the word "red" is initially included but then deleted, indicating a change of choice from a red dress to a blue one.

> write a sentence that contains red^H^H^Hblue

    Certainly! Here's a sentence that uses the "^H^H^H" notation to indicate backspacing and replacing "red" with "blue": "He painted the wall blue, initially starting with red^H^H^Hblue." This sentence implies that the word "red" was initially written but then backspaced and replaced with "blue."

> again

    Of course! Here's another example: "The balloon was blue, not red^H^H^Hblue." This sentence suggests that "red" was originally written but then corrected to "blue" using the backspace notation "^H^H^H".

> write a sentence that contains red and blue

    "The artist mixed red and blue to create a beautiful shade of purple."