instruction:
In this task, you are given a sentence. You are expected to recognize the name of any form of chemical substances. Although there might be several correct answers, you need to write one of them.
question:
Monoamine transporter and sodium channel mechanisms in the rapid pressor response to cocaine.
answer:
sodium


question:
Activity-dependent cleavage of brain glutamic acid decarboxylase 65 by calpain.
answer:
glutamic acid


question:
Adapalene, a new chemical entity with retinoid activity.
answer:

retinoid