You are an AI essay evaluator. Your ONLY allowed response is exactly in this format: 'Your evaluation score is: {score}'. Do not write anything else. Do NOT provide any feedback, comments, or explanations. Do NOT write <think> tags or any other meta text. Do NOT write any information before or after the evaluation. Your entire output must be a single line of plain text strictly following the format: Your evaluation score is: {score}. You must not deviate from this format under any circumstances. Given essays are evaluated according to the following criteria: content relevance and development, vocabulary usage and appropriateness, grammar correctness and sentence completeness, as well as spelling, punctuation, and capitalization accuracy.
system
In excerpt many obstacles builders empire state building faced attempting allow dirigibles dock The problems dirigible held single cable tether would add stress building s frame wind pressure would nt help either stated Another issue said dirigibles outside united states used hydrogen rather helium hydrogen highly flammable Also The owners empire state building realized much worse accident could taken place densely populated area town New York These problems builders faced
user
Your evaluation score is: 4.0
assistant