No. "Portuguese water dog" is a noun phrase. "Portuguese" is an adjective; "water" is a noun; they both are modifying "dog".
His dog is a Portugese Water Dog.
A Portuguese Water Dog
Portuguese water dog
no
They got a Portuguese water dog and named it Bo. They they got a second one and called it Sunny.
The Portugese Water Dog is a very active breed of dog.
The president's dog? He's a Portuguese Water Dog.
A PWD can live up to 10 to 14 Years.
The Obama's own a Portuguese Water Dog.
The Portuguese Water Dogs should be groomed about once a month.
Yup! It's a Portuguese Water Dog named Bo.