Assertion: spearmint's use | /r/HasProperty | warranted of improved form of the plant
Facets:
Source sentences:
text: On the scarcity of Thymol becoming acute on the outbreak of the Great War, the United States Department of Agriculture took up the matter, entered thoroughly into the question of utilizing the native American plant for the source of the valued product, and carried out exhaustive experiments in 1914 and 1915 as to the cultivation of the plant, the extraction of Thymol, the yield per acre and thecommercial prospects of the cultivation of the plant, the conclusions arrived at being that the use is now warranted of the improved form of the plant - its luxuriance increased by cultivation - being used for the commercial production of Thymol in the United States