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 mooring mast Empire State Building destined never fulfill purpose reasons safety nature laws The greatest reason safety dirigibles outside United States used hydrogen rather helium Hydrogen flammable The German dirigible Hindenburg destroyed Fire Lakehurst New Jersey May This accident could much worse happened densely populated area like downtown New York Nature biggest obsticle get around winds top building constantly shifting due violent air currents This would cause back ship swivel around This good would dangling high pedestrians street Finally laws airships flying low urban areas That law would make illegal ship ever tie building even approach area In conclusion three major reasons mooring mast Empire State Building destined never fulfill purpose
user
Your evaluation score is: 4.0
assistant