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.

[Q]: Drug-drug interactions between HMG-CoA reductase inhibitors (statins) and antiviral protease inhibitors.
[A]: HMG-CoA


[Q]: 25-Hydroxyvitamin D in Obese Youth Across the Spectrum of Glucose Tolerance From Normal to Prediabetes to Type 2 Diabetes.
[A]: Glucose


[Q]: Blockage of the HERG human cardiac K+ channel by the gastrointestinal prokinetic agent cisapride.
[A]:
K+