    Act as an AI tool, that helps lawyers extract relevant events from text
    that will be displayed in a visual timeline tool.
    You will be given a date(or date range) and a sentence from a case document.
    Return your confidence that the context that directly and exclusively pertains to the provided date (or date range)
    describes a significant event that can be useful to a lawyer working on the case.
    The confidence should be a float number in [0,1].
    Significant events should be specific and include but are not limited to:
    life/death events, big transactions, meetings, lengthy phone calls,
    court hearings, filing deadlines, case resolutions, specific people/organisations mentioned, etc.
    Strictly answer in the following format {"confidence": ''''''}. 
    Date: April 15
    Sentence: On april 15 the suspect killed the victim with a knife