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
In excerpt The Mooring Mast builders Empire State Building faced several obstacles attempt allow dirigibles dock The first obstacle encountered designing mooring mast could hold stress dirigible s load In stanza author writes A thousandfoot dirigible moored top building held single cable tether would add stress buildings frame steel frame Empire state building would modified strengthened ameliorate problem Next greatest obstacle faced strong winds top building In stanza say Even dirigible tethered mooring mast back ship would swivel around around mooring mast This arrived huge problem architects could weigh back ship could endanger pedestrians Lastly stanza states existing law airships flying low urban areas would illegal dirigibles tie empire state building even come close area Due three obstacles plan using mooring mast became idea past
user
Your evaluation score is: 5.0
assistant