Task: Text Categorization
Input (English): LDA is used to transform propargyl diol into one of these compounds in the Whiting reaction. A  useful one of these compounds is synthesized using zinc chloride to combine trimethylsilyl chloride  with methoxybutenone. The namesake value of these compounds is expressed as the mass of iodine  equivalent to the amount of (*) maleic anhydride reacting with a unit mass of one of these. The  cumulated type of these compounds are less stable than other types. Electrophilic addition can result in  both 1,2 and 1,4 additions in the conjugated type of these molecules. That type also undergoes a type of  reaction that follows the endo addition rule and forms cyclohexenes, the Diels-Alder reaction. For 10  points, name these hydrocarbons that contain two carbon-carbon double bonds.
Output (English): Science