How to stop consuming after find reserved word

[nhan-dang]

I have a question: I have defined a grammar looks like this in general:
value to value:
value = ~r"[\w]+(_? [\w]+)"
to = "to"
So if i parse: "place the shelves to higher place", i will give the IncompleteParseError, because the value also consume the entire string. I want to have it split into 2 values: "place the shelves" and "higher place". Is there any way i can define this? Thank you