indole

"Burning wood for heat produces ash as a byproduct. "

"The prisoners were kept in a secure compound. "

"The application of this cream should reduce the swelling."

"The weather forecast predicted an unpleasant day, with rain and strong winds. "

"The student's guileless enthusiasm for learning was contagious. "

"Many medications are derivatives of natural substances found in plants or fungi. "

"The doctor suspected a bacterial infection after examining the patient's throat. "

"Eating a banana before bed can help you relax because bananas contain tryptophan, which the body uses to produce calming hormones. "

"The decomposition of fallen leaves in the garden created rich compost for the flowers. "

"My grandfather was a skilled industrial during the 1950s. "

"The scientist studied the effects of different types of soil on plant growth. "

""During the war, the refugees lived in guarded compounds for their safety." "