You have nothing that identifies that there, you have no way of saying what this grouping actually means.

我仅仅用了一个数组，就把信息聚集到一起了,假设我给了你。

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And I could take that information, type it up into a program, make some assumptions about speed and direction and what routes they're going to take and actually watch the ambulance go to St. John's Mercy.

我得到这条信息之后，将它输入程序里，假设它们的速度和方向,以及它们应走哪条线路,就能看到救护车进入圣约翰医院。

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