Assertion: detector's part | /r/HasProperty | 7.1 to 8.4 khz
Facets:
Source sentences:
text: The main frequencies are categorized into five main parts: 3.7 to 4.4 kHz, 7.1 to 8.4 kHz, 10.5 to 12.4 kHz, 15.2 to 17.8 kHz, and 23.5 to 27.7 kHz.