Error in creating an external table in Athena: Watch out for hyphens!

The following CREATE statement was issued in AWS Athena's Query Editor to create an external table for CloudFront access log acquisition.

CREATE EXTERNAL TABLE IF NOT EXISTS cf_log ( 
    request_date string, 
    request_time string, 
    x_edge_location string, sc_bytes int, 
    client_ip string, 
    cs_method string, 
    cs_host string, 
    cs_uri_stem string, 
    sc_status string, 
    cs_referer string, 
    user_agent string, 
    uri_query string, 
    cookie string, 
    x_edge_result_type string, 
    x_edge_request_id string, 
    x_host_header string, 
    cs_protocol string, 
    cs_bytes int, 
    time_taken DECIMAL(8,3), 
    x_forwarded_for string, 
    ssl_protocol string, 
    ssl_cipher string, 
    x_edge_response_result_type string, 
    cs-protocol-version string, 
    fle-status string, 
    fle-encrypted-fields string 
) ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe' 
WITH SERDEPROPERTIES ( 
    'serialization.format' = '\t', 
    'field.delim' = '\t' 
) 
LOCATION 's3://{S3 bucket name}/' 
TBLPROPERTIES ( 
    'has_encrypted_data'='false', 
    'skip.header.line.count'='2' 
);

However, I get the following error and cannot create the table.

line 1:8: no viable alternative at input 'create external' (service: amazonathena; status code: 400; error code: invalidrequestexception; request id: {request id}

The cause was due to the presence of hyphenated strings in column names.

cs-protocol-version string, 
fle-status string, 
fle-encrypted-fields string

After correcting to underbar, it can now be executed without error.

cs_protocol_version string, 
fle_status string, 
fle_encrypted_fields string