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 several obstacles builders Empire State Building faced attempting allow dirigibles dock One major problem stress added building s frame dirigible wore top building The stress dirigible s load wind pressure would transmitted way building s foundation This meant would rearrange frame make work Consequently workers never able accomplish goal Safety major factor failure dock dirigibles dirigibles highly flammable could caused serious accident occur However greatest obstacle successful use mooring mast nature heavy air currents building would cause dirigible swivel around attached mooring mast There also existing law prohibited planes fly low city areas making impossible dirigibles reach building As result obstacles main goal dock dirigibles achieved
user
Your evaluation score is: 5.0
assistant