With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Semitic languages are spoken by less than 330 million people.
text_B: The hypodermic needle model -LRB- also known as the hypodermic-syringe model , transmission-belt model , or magic bullet theory -RRB- is a model of communications suggesting that an intended message is directly received and wholly accepted by the receiver .. communications. communications. The model was originally rooted in 1930s behaviorism and largely considered obsolete for a long time , while big data analytics based mass customization has led to a modern revival of the basic idea .. behaviorism. behaviorism. big data. big data. mass customization. mass customization
not_related.