A woman on crutches watching two street performers jumping around.
A woman who broke her leg jumping around watches two street performers do the trick she failed to do
A person can be on crutches for many different injuries, it cannot be assumed that she broke her leg.  A person can injure their leg many ways, the fact that she is watching street performers does not mean that they can do the trick she failed to do; their is no way of knowing her thoughts or previous activities.
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