With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Shawn Mendes caught the attention of Andrew Gertler and Ziggy Chareton who are managers.
text_B: Shawn Peter Raul Mendes -LRB- -LSB- ˈmɛndɛz -RSB- , -LSB- ˈmedɨʃ -RSB- ; born August 8 , 1998 -RRB- is a Canadian singer and songwriter .. He attracted a following in 2013 , when he began posting song covers on the video sharing application Vine .. Vine. Vine ( software ). The following year , he caught the attention of artist managers Andrew Gertler and Island Records A&R Ziggy Chareton , which led to him signing a deal with the record label .. Island. Island Records. Andrew Gertler. Andrew Gertler. Island Records. Island Records. A&R. Artists and repertoire. Mendes went on to release an EP and his debut studio album Handwritten , whose single `` Stitches '' reached the top 10 in the US and Canada , and number one in the UK .. an EP. The Shawn Mendes EP. Handwritten. Handwritten ( Shawn Mendes album ). Stitches. Stitches ( song ). His sophomore album , Illuminate -LRB- 2016 -RRB- , was preceded by the single `` Treat You Better '' .. Illuminate. Illuminate ( Shawn Mendes album ). Treat You Better. Treat You Better. Both albums debuted atop the US Billboard 200 .
related.