How many categories of new entries this round are there for the fourth round proper? 
CREATE TABLE table_17814838_1 (new_entries_this_round VARCHAR, round VARCHAR)
SELECT COUNT(new_entries_this_round) FROM table_17814838_1 WHERE round = "Fourth round Proper"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_17814838_1 (new_entries_this_round VARCHAR, round VARCHAR) Question: How many categories of new entries this round are there for the fourth round proper?  [/INST] SELECT COUNT(new_entries_this_round) FROM table_17814838_1 WHERE round = "Fourth round Proper" </s>