But I have said nothing about the subject. To make a sentence I must say something about the girl. If I say The girl dances well, I have expressed a complete thought and I have made a sentence. In grammar the person or thing we speak about is called the subject. What we say about the subject is called the predicate.
The Belgian Laekenois is a medium sized dog that weighs between 50 and 65 pounds. The rarest of the four Belgian Shepherd dogs, the Belgian Laekenois is a sturdy, well-proportioned medium-sized dog with a rough wire coat that easily distinguishes it.
1 Small to medium sized dogs (like Beagles and Basenjis) will reach their final height between 12 and 15 months, and their final weight by 18 months.  Medium and large breed dogs (like Collies and Golden Retrievers) are full grown by around 18 months, and reach their final weight at around 2 years.