生命 せいめい存在 そんざい指標 しひょうではありませんでした
seimeisonzai shi hyōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 生命存在指標

1. Was not a vital sign.; Was not an indicator of life.

Past/Perfective
Negative
Polite
Formal Register