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
While building Empire State Building builders faced many obstacles attempting allow dirigibles dock One greatest obstacles safety They would need find way dock dirigibles mast swing wind Even dirigibles tethered mooring mast back ship swivel around around mooring mast NUM Another obstacle attempting allow dirigibles dock Empire State Building designing mast The architects could simply drop mooring mast top Empire State Building s flat roof NUM The Empire State Building s steel frame strengthened order withstand weight mast
user
Your evaluation score is: 4.0
assistant