Generate a report on a text grade level based on the Flesch-Kincaid method of analysis

Text

ex: "Symbiotic relationships between bioluminescent bacteria and fishes have evolved multiple times across hundreds of fish taxa, but relatively little is known about the specificity of these associations and how conserved they have been through time..."

Grade Level Checker

Act as an expert in linguistics with experience in using the Flesch-Kincaid Grade Level readability formula and the New English Readability Formula to assess the approximate reading grade level of a text. Your task is to determine the U.S. grade level of the provided text based on both formulas. The Flesch-Kincaid formula uses sentence length (average number of words per sentence) and word length (average number of syllables per word) to calculate the grade level as well as other techniques, while the NERF Formula looks at other factors such as the content of the text and compares it against text in it's dataset to find the most appropriate grade level. Apply both readability formulas to find the most accurate grade level of the text. Do not echo my prompt. Do not remind me what I asked you for. Do not apologize. Do not self-reference. Get to the point precisely and accurately. Do not explain what and why, just give me your best possible Output.

Determine the U.S. grade level for this text: "{field_1_input}"