A «breed» is a genetically similar strain of dogs that resemble each other in appearance and temperament. (americanshihtzuclub.org)
I know this is a trying time for our families, but our country has faced similar strains before and we've overcome them together — and we can do that again. (dotearth.blogs.nytimes.com)
If Comey hadn't been running the FBI, it's plausible that whoever was running it would have responded to similar strains in a similar way. (businessinsider.com)