How can I use Presto antlr g4 file?

[smartnewsdingli]

I am attempt to parse presto query by myself. and I download this file to local
https://github.com/prestodb/presto/blob/master/presto-parser/src/main/antlr4/com/facebook/presto/sql/parser/SqlBase.g4
Generate antlr files, and try this query:
SELECT a from xx.bb

Here is my code to parse

SqlBaseLexer lexer = new SqlBaseLexer(CharStreams.fromString(new String(Files.readAllBytes(Paths.get(scriptPath)), StandardCharsets.UTF_8)));

    CommonTokenStream tokens = new CommonTokenStream(lexer);

    SqlBaseParser parser = new SqlBaseParser(tokens);

    ParseTree tree = parser.statement();

    ParseTreeWalker walker = new ParseTreeWalker();

    PrestoListener listener = new PrestoListener();

    walker.walk(listener, tree);

and there are errors:

line 1:7 mismatched input 'a' expecting {'(', '?', 'ADD', '.......
Seems can't parse even a very simple query, my question is, can I use this g4 file out of box, like other g4 files such as https://github.com/antlr/grammars-v4?

[smartnewsdingli]

I know why, all tables name should be uppercase letter.