Question: What problem is caused by an IE system having a rigid matching priority? Regular expressions cannot be used when specifying rules. There is no support

What problem is caused by an IE system having a rigid matching priority?
Regular expressions cannot be used when specifying rules.
There is no support for matching strings spanning more than one token.
The system cannot express aggregation operations.
When multiple rules match the same region of text, mistakes are likely to occur.
What problem is caused by an IE system having a

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