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
While attempting allow dirigibles dock Empire State Building builders faced many obstacles The first obstacle dealt fact mooring heavy blimps would add stress building In fact the stress dirigible s load wind pressure would transmitted way building s foundation Another obstacle endured fact hydrogen gas used dirigible flammable As bad Hindenburg explosion could much worse if taken place densely populated area downtown New York It also dangerous blimps would fly low urban area Lastly strong winds would making mooring difficult Winds high building constantly shifting due violent air currents The workers clearly many problems building mast could nt completed
user
Your evaluation score is: 4.0
assistant