With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: There is a popular culture category for slang.
text_B: Cardboard modeling is a form of modelling with paper , card stock , paperboard , and corrugated fiberboard .. modelling. Model building. paper. paper. card stock. card stock. paperboard. paperboard. corrugated fiberboard. corrugated fiberboard. The term cardboard engineering is sometimes used to differentiate from craft of making decorative cards .. craft. craft. decorative cards. Greeting card. It is often referred to as paper modelling although in practice card is generally used .. modelling. Model building. paper. paper
not_related.