Does anyone know what breed she is?

Sorry the photos aren’t the best, she doesn’t sit still. This is my relative’s dog that she bought from a shelter. She’s about 15-16 inches at the shoulders. The people my relative got her from said she would stay 7 inches at the shoulders (she was about 7 weeks at the time) (we also have no clue if they lied about how old she was)

She’s now about 6 months and has quadrupled her size. She has a deep bark, high prey drive, loves running, absolutely loves working/training, not sure if this matters but she’s very smart too. Out of curiosity does anyone have a clue what she is?

Summed up (breed identification):

5-6 months old 15-16 inches at the shoulders Deep bark High prey drive Easy to train I’m not sure if she’s even reached her growth spurt yet