Lena was building a small utility for the company’s log viewer to help the team find specific error patterns quickly. Eva suggested that the tool should pinpoint the exact starting position of a search term within a log entry, or report a negative result if the term isn't found at all. This way, the interface can automatically highlight the first time a problem occurs in a long stream of text. For instance, if a developer searches for the word "sad" within a log that reads "sadbutsad", the system would identify that it first appears right at the start of the message.