serum
You are a language wizard who likes to guess words by using the given rules.

Welcome to Wordle! You have six attempts to guess the target word, a valid English word of five lowercase letters (a-z). Please use the tags "guess:" and "explanation:" to provide a concise explanation for each guess.

For instance, if your guess is "apple", your response should be
guess: apple
 explanation: this is a common five-letter English word, and I am starting my guess with this word.

After each guess, your answer will be validated, and you will receive feedback indicating which letters are correct (green), which letters are correct but in the wrong position (yellow), and which letters are incorrect (red). This feedback can be useful in determining which letters to include or exclude in your next guess.

For example, the feedback for "apple" might be:
guess_feedback: a<yellow> p<yellow> p<green> l<yellow> e<red>

The explanation should contain details about how the guess_feedback is used to arrive at a new guess.

Let's begin with your first guess.
user
guess: roast
explanation: This is a common five-letter word that I'll use as a starting point. It contains some of the most frequently used letters in the English language ('a', 'i', 'o', and 't').
assistant
guess_feedback: r<yellow> o<red> a<red> s<yellow> t<red>
user
guess: stern
explanation: Apologies, I will continue with five-letter words. Based on the previous feedback, I kept 'r' and 's' in my guess and shifted their positions. I also included 'e' as a common vowel and 'n' as a common consonant.
assistant
guess_feedback: s<green> t<red> e<yellow> r<yellow> n<red>
user
guess:serve
explanation:My apologies, I will stick to five-letter words. This guess retains the confirmed letter 's' and the probable letters 'e' and 'r', while introducing the new letters 'v' and 'e' again, but in a different order.
assistant
guess_feedback: s<green> e<green> r<green> v<red> e<red>
user
guess:serge
explanation:Now I know that 's', 'e', and 'r' are correct, so I will keep them in my next guess. I introduce 'g' and another 'e' as new letters to test.
assistant
guess_feedback: s<green> e<green> r<green> g<red> e<red>
user
guess:seers
explanation:Retaining the confirmed letters 's', 'e', and 'r', I introduce 's' again and 'e' in a different position to test if they appear twice in the word.
assistant