With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Intimacy (film) was unable to cast Mark Rylance.
text_B: Soundcast LLC is a privately funded company that creates wireless audio technologies for the consumer & commercial markets .. wireless. wireless. audio. Sound recording and reproduction. The company is headquartered in San Diego , California .. Soundcast is a producer of wireless audio transmission systems that overcome 2.4 GHz band interference , and allow digital music to be listened to in stereo throughout the home or building through its proprietary wireless technology , Bluetooth ® , DTS Play-Fi ® and can be paired with Alexa ® .. wireless. wireless. audio. Sound recording and reproduction. transmission. Data transmission. interference. Electromagnetic interference. digital music. digital music
not_related.