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
The main obstacles builders Empire State Building faced attempting allow dirigibles dock stemmed bad location The dirigibles would docking feet one busiest cities world This would create three problems docking dirigibles The first problem hydrogen used dirigibles extremely flammable If dirigible explode downtown New York many people would killed This means many people going want dirigibles docking If Empire State Building densely populated area may problem The next difficulty would fact altitude New York City violent wind currents always changing This makes hard conductors dock dirigible also could possibly cause dirigible hit something pop So dirigible falling downtown New York killing many people This another reason bad location It needed place stable wind currents The final obstacle existing law airships flying low urban areas This meant even factor disappear law builders known forbade plans Like author said Empire State Building destined never fulfill purpose
user
Your evaluation score is: 4.0
assistant