冒頭 ぼうとう陳述 ちんじゅつでしょう
bōtōchinjutsudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 冒頭陳述

1. Probably an opening statement.; Likely a preamble.

Polite
Presumptive
Conjecture