What are their names?
 Can you walk, Dick?" 

"I guess so, although being tied up made me rather stiff." 

"I see your wrist is bleeding." 

"Yes, and I tried pretty hard to free myself." 

"And I tried, too," added Sam. "But I couldn't budge a single knot." 

"We could not unknot the knots," added Tom, who was bound to have his joke. 
 