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_64 (reactortype VARCHAR, gross_capacity VARCHAR, electricity_grid VARCHAR)
### Question:
Which Reactortype has a gross capacity of 417 mw and an Electricity Grid of 27.12.1971?
### Answer:
SELECT reactortype FROM table_name_64 WHERE gross_capacity = "417 mw" AND electricity_grid = "27.12.1971"