It takes place after the Franks have been captured.
Anne Frank's Family Goes into Hiding. In early July 1942, In Amsterdam. On 4 August 1944, everyone in the Secret Annex is arrested. Including Anne Frank
A long exposition differs from a typical stage direction because a stage direction is usually brief. An exposition, however, goes into more detail. A stage direction also just usually tells the setting or where or what the character is doing, or how the stage looks. An exposition shows history and goes full out on the setting.
Its a verb that acts as a noun.
I think its 5 lines and a syllable count of 5, 7, 5, 7, 7,