Mateo shrugged.

“I had to ask him what a stern line was when I wrote my boat report.”

Clara thought about that.

For Mateo, his grandfather’s work had been unfamiliar, but nobody had assumed the terminology was invented.

He’d written about fishing equipment and boats.

She’d written about a military working dog.

The two reports were different.

But both depended partly on information supplied by an adult who understood the work.