backstroke

"a lamb is a young sheep;  these picture books are for young readers"

"The Earth's rotation causes day and night. "

"The dry-stone wall used a large, flat through to support the top stones. "

"The new school principal is a powerful advocate for student success. "

"He rotated in his chair to face me."

"The comparison between my sister's and my grades showed she consistently performed better in math. "

"The bellringer felt the familiar resistance of the sally as he prepared for the next handstroke, knowing it would send the heavy bell swinging upward. "

"The school's swimming team has a new swimmer this year. "

"The battleship had three backwards guns at the stern, in addition to the primary complement."

"The church's bellringing announced the start of the wedding ceremony. "

"My favorite weekend activity is swimming. "

"Because she had been a dancer for years, she was a practiced performer. "