Count log lines by level

Your web server writes one log line per event in the format "<timestamp> <LEVEL> <message>", for example "2026-07-01T10:00:00 ERROR auth timeout". The level is always the second space-separated token. Given the log lines in order and a level name such as "ERROR", return how many lines were logged at exactly that level. Match the level token exactly, a line whose message merely mentions the word does not count.