Historically, meetings between heads of state can have a neutral impact on the stock market, unless specific policies or agreements are announced. In this case, the meeting with Prime Minister Mark Carney may not have a significant impact on the market, as there is no clear indication of any major economic announcements. However, the positive tone of the meeting could contribute to a sense of stability and cooperation between nations, which can have a mildly positive effect on market confidence. The video link provided in the post may contain additional information, but based on the available text, it appears to be a routine diplomatic meeting. The stock market may react more to the overall tone and implications of the meeting, rather than any specific announcements. As a result, the market sentiment score is neutral, reflecting the lack of clear market-moving information in the post.