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
There many obstacles builders Empire State Building faced attempt allow dirigibles dock first obstacle architects could simply drop mooring mast top Empire State Building s flat roof If builders decided dirigible moored top building would add stress building s frame could also jeopardize lives tourists visited everyone worked thereThere also fact The stress dirigible s load wind pressure would transmitted way building s foundation nearly eleven hundred feet Which meant frame Empire State Building would modified strengthened something like nt come cheap fact Over sixty thousand dollars worth modifications made building s framework In attempt allow dirigibles dock Empire State Building failure The obvious safety since dirigibles outside United States used hydrogen instead helium hydrogen highly flammable The end result today rooms set aside baggage world s highest soda fountain tea garden And highest observation deck never open public
user
Your evaluation score is: 4.0
assistant