In python please write regular expressions that do each the following:

Match the substring "hello world" in a string.

Find all words in an input string that contains three consecutive vowels, regardless of case.

Match an input string that is entirely a flight code, of the format AA####, where AA is a two-letter uppercase airline code, and #### is a three- or four-digit flight number.

example -

Note: text in red is matched by the regular expression. Each line is a separate test input string Regex 1: Programmers wi11 often write hello vorld as their first project with a programming language Regex 2: The gooey peanut butter and jelly sandwich was a beauty Regex 3 AA312 AA1298 NW1234 US443 US31344 AA123 extratext Note: text in red is matched by the regular expression. Each line is a separate test input string Regex 1: Programmers wi11 often write hello vorld as their first project with a programming language Regex 2: The gooey peanut butter and jelly sandwich was a beauty Regex 3 AA312 AA1298 NW1234 US443 US31344 AA123 extratext