Sentence:  The ergot alkaloids in general are classified into four main structural groups: 1. the simple amide group such as LSD and the methyl carbinolamide; 2. more complex peptide complex viz. ergotamine, where the <WSD>lysergic</WSD> acid moiety is linked with cyclic tri-pepide via an amide bond 3. <WSD>lysergic</WSD> acids and 4. clavine alkaloidsnb.... 
Meaning of the word marked with <WSD> tags:  (Used in the designation of lysergic acid and lysergic acid diethylamide): produced by hydrolysis from ergot. (from 1930s)