sentence2_structure: An amine<>is<>an organic compound that can be considered to be a derivative of ammonia$$$an organic compound<>to be<>a derivative of ammonia
sentence1: 4 If a material outgasses organic bases, such as amine, ammonia, or 1-methyl-2-pyrrolidone (NMP), the acid in the resist film can be neutralized.
sentence2: An amine is an organic compound that can be considered to be a derivative of ammonia.
question: An amine is an organic compound that can be considered to be a derivative of what?