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
Based excerpt obstacles builders Empire State Building faced attempting dock dirigibles building foreign dirigibles used highly flammable hydrogen helium winds top building violently changed illegal fly low urban areasFirst foreign blimps using hydrogen dangerous due high risk burst flames This occurred builders German blimp Hindenburg caught fire May After tragedy realized much worse accident could taken place densely populated area downtown New York If incident happened New York City many lives would lost More people would die would cause bigger fiascoAlso winds building change constantly would make blimp unstable The article explains effect stating Even dirigible tethered mooring mast back ship would swivel around around mooring mast The changing winds would torture back ship The front would secured due tethering back would left free sway swing wind Pedestrians would high risk danger making idea impracticalFinally law made illegal even approach building nevermind dock The article tells saying existing law airships flying low urban areas Would make illegal ship ever tie building even approach area The builders simply could use dock unless law changed The law made protect pedestrians innocent bystanders flying craft Empire State Building would violate said lawIn conclusion three obstacles stopping use Empire State Building hydrogen gas used foreign blimps unpredictable winds making craft swivel law prohibiting aircrafts flying low urban areas
user
Your evaluation score is: 5.0
assistant