premise: How to choose an ergonomic office chair<br>Look for the ability to adjust the chair's height. The height of your ergonomic chair should be fully adjustable. The chair's seat should be easy to move either upwards or downwards.
hypothesis: Taste the ability to adjust the chair height.
reason: You cannot taste a chair to check the ability to change height. It confused the system because it is almost word for word the same as an existing sentence.