Instruct: Classify Amazon reviews into positive or negative sentiment
Query: B12 Vitamin works good; removed fatigue by taking this.

This B12 Vitamin works good; it removed fatigue by taking this vitamin.I feel much better as a result of taking this B12 vitamin. I tried sublingual ones; but I did not like them as much as this regular pill form. The pill is not too large; so it is easy to swallow.