Given the task definition and input, reply with output. Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Sentence: 'The NRTA office is located at 3 East Chestnut Street and is open Monday through Friday 8:00 a.m. to 4:00 p.m. , closed weekends and holidays .', Argument/Subject 1: 'open', Argument/Subject 2: 'monday'
close on