This is the 5977th most frequent Polish word.
ławce
"Ławce" is the dative or locative form of "ławka," meaning "bench" or "desk" in English.
In this sentence, 'ławce' is used in the locative case to indicate 'on the bench' as the location where the action is taking place.
Siedzę na ławce w parku.
I am sitting on a bench in the park.
Here, 'ławce' is in the locative case to denote proximity or location near the bench.
Dzieci bawią się przy ławce.
Children are playing near the bench.
The word 'ławce' is again in the locative case, specifying the bench as the place of rest.