Sentence:  During fiscal year 1960 , seven courses were <WSD>conducted</WSD> : Application of Histochemistry to Pathology , Forensic Pathology , Pathology of Diseases of Laboratory Animals , Pathology of the Oral Regions , Opthalmic Pathology , Forensic Sciences Symposium , and Orthopedic Pathology . 
Meaning of the word marked with <WSD> tags:  lead, as in the performance of a composition; Barenboim conducted the Chicago symphony for years"