Assuming the phrase "Binnenkort, moeder, is dit treurspel te zien" (5 letters) is a cryptogram, here are some possible solutions with 5 letters:
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HAMLET (English): A famous Shakespearean tragedy about a prince who seeks revenge for his father's murder. 
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MEDIA (Latin): A means of communication, such as television, radio, or the internet. 
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DRAMA (Greek): A genre of literature that tells a story through dialogue and action, typically with a serious or somber tone. 
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SCHOUW (Dutch): A theater or playhouse. 
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TONEEL (Dutch): A stage or theater. 
These options all fit the context of the phrase and have the correct number of letters. The most likely answer is HAMLET, as it is a well-known tragedy that could be considered a "treurspel" (Dutch for "tragedy"). However, the other options could also be correct depending on the specific context.
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