With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A block is also called a "pack."
text_B: Prosthetic Neuronal Memory Silicon Chip is a device that imitates the brain 's process of creating long-term memories .. This device was designed by Theodore Berger , a Biomedical Engineer and Neurologist at University of Southern California .. Berger started to work on this chip in the early 1990s .. He and his colleagues have been able to implant electrodes into rats and monkeys that restore their memories after previously being impaired .. electrodes. electrodes. While researchers are well into developing an actual memory prosthesis in animals , they still need to show that their chips can form long-term memories in many different behavioral situations .. prosthesis. prosthesis. Berger hopes to eventually use these chips as electronic implants for humans whose brains that suffer from diseases such as Alzheimer 's that disrupt neuronal networks .
not_related.