With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Amoxicillin can be received by injection.
text_B: Driveline windup is also known as `` axle binding '' or `` driveline binding '' .. Mechanical components in the drivetrain of vehicles may bind and wear , which may occur when tires of varying sizes are used on one vehicle .. drivetrain. drivetrain. It is a particular issue in 4WD cars with tires having varied tread patterns or brands .. 4WD. Four-wheel drive. tread. tread. Despite marked size , different brands often differ in actual size .. Even if both front and rear are the same brand , and marked with the same size they may still differ in actual size .. A pull to the right or left when driving or braking could trigger windup caused by mismatched tire tread / sizes .. tread. tread
not_related.