premise: The Jerome Cooperative Creamery is a cooperative creamery and also refers to historic lava rock structures used by the creamery on Birch Street in Jerome, Idaho, United States. The structures were listed on the National Register of Historic Places in 1983. They were built in 1915, 1924, and 1933 by master stonemason H.T. Pugh who popularized the use of lava rock in the Jerome area.
hypothesis: The earliest built historic lava rock structure used by the creamery is over 101 years old
reason: It's definitely correct because the earliest structure was built in 1915, so it must be at least 103-104 years old, which is more than 101. I think the reasoning required to answer this question is too complex for the system and it doesn't know how to parse the question and use the values in the text to make the right calculation.