in the middle of the 1900's
http://data.open.ac.uk/time/edtf/190u-Mm-uu
is a Entity

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Property Object
Century 00s
century Century.19
Year Unspecified.MID
Type Entity
Label in the middle of the 1900's

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Subject Property
between at the end of the 1800's and in the middle of the 1900's End
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