| ```python | |
| mapping = { | |
| "16x risers": "unknown", | |
| "16x55nm chips": "unknown", | |
| "175 available for shipment": "unknown", | |
| "176 chips": "unknown", | |
| "176-264 volt psu's": "unknown", | |
| "18 awg per cable": "unknown", | |
| "18 card 7970 rig": "7970", | |
| "18 chips": "unknown", | |
| "18 gauge awg 12v + ins": "unknown", | |
| "18 gauge computer cable": "unknown", | |
| "18 gauge power cords": "unknown", | |
| "18 pin plug": "unknown", | |
| "18 pins cables": "unknown", | |
| "18\" cables": "unknown", | |
| "18-hand mule": "unknown", | |
| "18.000 btu/h hvac": "unknown", | |
| "180 gh/s antminer": "antminer s1", # Assuming closest match based on hash rate. | |
| "1800mh/s": "unknown", | |
| "1800rpm quiet fans": "unknown", | |
| "1800w power supply": "unknown", | |
| "180gh ants": "antminer s1", # Assuming typo and closest match based on hash rate. | |
| "1875 watts socket": "unknown", | |
| "188 buck sam's club shop workbench": "unknown", | |
| "18awg (0.824mm2) cable": "unknown", | |
| "18awg cables": "unknown", | |
| "18awg pcie y-splitters": "unknown", | |
| "18awg standard wire": "unknown", | |
| "18awg thermostat wire": "unknown", | |
| "18ga wire": "unknown", | |
| "18gh board": "unknown", | |
| "18gh/s unit": "unknown", | |
| "18guage wires": "unknown", | |
| "18pin connectors": "unknown", | |
| "19 pcie mobo": "unknown", | |
| "19 port hub": "unknown", | |
| "19\" rack box": "unknown", | |
| "19\" rackmount enclosure": "unknown", | |
| "19-porter from dipo electronic": "unknown", | |
| "192 cfm delta pwm fan": "unknown", | |
| "192 ghs miner": "unknown", # No direct match, could be a general reference to a miner's hash rate. | |
| "192.168.0.1 router": "unknown", | |
| "192.168.1.8": "unknown", | |
| "1a adapter": "unknown", | |
| "1a mains to usb adapter": "unknown", | |
| "1a921": "unknown", | |
| "1gb kingston": "unknown", | |
| "1gh rig": "unknown", | |
| "1gh/s setup": "unknown", | |
| "1k ohm resistor": "unknown", | |
| "1kw 28nm miner": "unknown", # No direct match, could refer to a miner's power consumption or efficiency. | |
| } | |
| ``` |