Python - If string contains a word from a list or set

I have searched quite thoroughly and have not found a suitable answer. I am new to Python/Programming, so I appreciate any advice I can get: I am trying to search user input strings for certain key words. For example, we'll say filtering out profanity. From my research, I have been able to make the following dummy example: ``` Swear = ("curse", "curse", "curse") #Obviously not typing actual swear words, created a set Userinput = str.lower(input("Tell me about your day: ")) if Userinput in Swear: print("Quit Cursing!") else: print("That sounds great!") ``` Using the above, if the user enters an exact word form the set as their entire string, it will print "quit cursing"; however, if the user enters "curses" or "I like to say curse" it will print "That sounds great!" Ultimately what I need is to be able to search the entire string for a key word, not an exact match of the entire string. Ex: "I went to the park and felt like screaming curses" should return true for a match.