Given the task definition and input, reply with output. You are given a sentence in Spanish. Your job is to translate the Spanish sentence into Galician.

Imaginen tratar de diferenciar dos moléculas, extremamente similares, extremamente pequeñas.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
É como diferenciar dúas moléculas, extremadamente similares e pequenas.