With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gray Davis had strong approval ratings.
text_B: An office chair , or desk chair , is a type of chair that is designed for use at a desk in an office .. chair. chair. It is usually a swivel chair , with a set of wheels for mobility and adjustable height .. chair. chair. swivel chair. swivel chair. Modern office chairs typically use a single , distinctive load bearing leg -LRB- often called a gas lift -RRB- , which is positioned underneath the chair seat .. chair. chair. Near the floor this leg spreads out into several smaller feet , which are often wheeled and called castors .. Office chairs were developed around the mid-19th century as more workers spent their shifts sitting at a desk , leading to the adoption of several features not found on other chairs .
not_related.