Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_79 (block INTEGER, director VARCHAR)
### Question:
What is the lowest block for director Graeme Harper?
### Answer:
SELECT MIN(block) FROM table_name_79 WHERE director = "graeme harper"