With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Slovakia is not a country.
text_B: Ablation is removal of material from the surface of an object by vaporization , chipping , or other erosive processes .. vaporization. vaporization. erosive. erosion. Examples of ablative materials are described below , and include spacecraft material for ascent and atmospheric reentry , ice and snow in glaciology , biological tissues in medicine and passive fire protection materials .. spacecraft. spacecraft. atmospheric reentry. atmospheric reentry. glaciology. glaciology. medicine. medicine. passive fire protection. passive fire protection
not_related.