Below is the text you need to evaluate. It is intended for grade {grade_level}.

As you read the text, you can assume the student has the following background knowledge about the text — this background knowledge influences which words from the text are familiar versus unfamiliar for the student: {student_background_knowledge}

[BEGIN TEXT]
{text}
[END TEXT]

In your response, when specifying the level of complexity, be sure to use only a single integer (e.g. 2) and don't include any other text (e.g. don't say "level 2").
