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 assignedto (project VARCHAR); CREATE TABLE projects (name VARCHAR, code VARCHAR, hours INTEGER)
### Question:
Find the number of scientists involved for the projects that require more than 300 hours.
### Answer:
SELECT COUNT(*), T1.name FROM projects AS T1 JOIN assignedto AS T2 ON T1.code = T2.project WHERE T1.hours > 300 GROUP BY T1.name