Complex sentence: Hôtel Drouot is a large auction house in Paris, for fine art, antiques and antiquities, consisting of 16 halls hosting 70 independent auction firms, operating under the umbrella grouping of Drouot.
Split into simpler sentences: Hôtel Drouot is a large auction house in Paris, known for fine art, antiques, and antiquities. It consists of 16 halls hosting 70 independent auction firms, which operate under the umbrella grouping of Drouot.