slates

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

"The teacher wrote the math problem on the chalkboard with white chalk. "

"As a stockholder in the company, Sarah receives a portion of the annual profits. "

"That sedimentary is made of layers of sand and shells pressed together over time. "

"Simple Sentence: "The students listened carefully to the speeches given by the school president candidates." "

"His sudden appearance surprised me."

"The twins resemble each other."

"The flowers were artificial, and he thought them rather tacky."

"The orphanage affiliated several children with new families. "

"The students in the class were a homogeneous group; they all seemed to have similar study habits. "

"The caterpillar metamorphosed into a beautiful butterfly. "

"The school offered an alternative schedule for students who needed more time to study. "