scoping

""The group of friends issued playful challenges to each other to see who could build the tallest sandcastle." "

"My grandfather is a birdwatcher and can identify almost any bird by its song. "

"Despite thorough investigation, the perpetrator of the attacks remains unknown."

"The students used library resources like books and computers to complete their research project. "

"The student used a microscope to see the tiny cells in the plant leaf. "

"The noted entomologist Charles W. Woodworth suggested the use of Drosophila melanogaster for genetic studies."

"He discovered penicillin largely accidentally."

"She has had a persistent cough for weeks."

"My doctor recommended a colonoscopy to check for any problems in my large intestine. "

"My brother is a programmer for a video game company. "

"She is committing her child to the care of a trusted babysitter for the evening. "

"The tiny springtail jumped away quickly when I watered my potted plant. "