This food may contain carcinogens.

Scientists are warning that this substance has carcinogenicity.

He may say he's a doctor, but he's actually a veterinarian.

Smoking increases the risk of carcinogenesis.

Sufficient caution is necessary when handling radioactive materials.

He was holding my hand tightly.

He was running while holding a bag.

He always carries an umbrella around.

This building is very high.

Education about sex is very important.