tugboats

"The cargo plane delivered the school supplies to the remote village. "

"The company used barges to transport tons of coal down the river. "

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

"The teacher guided the students through the difficult math problem. "

"Joint NATO maneuvers are as much an exercise in diplomacy as in tactics and logistics."

"Russia is a large country.   The fruit-fly has large eyes for its body size.   He has a large collection of stamps."

"karst massives in western Georgia"

"The family rented a small boat for a relaxing afternoon on the lake. "

"The child's small was sore after carrying his heavy backpack to school. "

"The student used a calculator to solve the math problem. "

"The harbor was full of vessels, from small fishing boats to large cargo ships. "

"The neighborhood is a well-known harbor for petty thieves."