pentavalent

"Condoms are designed to protect against sexually-transmitted diseases."

"Phosphorus is a vital element found in DNA, a molecule crucial for all living things. "

"The board recommends Philips, given his ample experience in similar positions."

"I went to the park because the weather was nice. "

"I have a house and a car."

"My son received the measles vaccine to protect him from getting the illness. "

"It is hard work to swim against the current."

"My family has a different ideal for my future than I do. "

"The tomato plants had some kind of disease that left their leaves splotchy and fruit withered."

"The doctor prescribed a new valence to treat the common cold virus, which was effective against several strains. "

"The feeling is difficult to describe, but not unpleasant."

"The scientist studied the chemical composition of the soil sample. "