<prompt> Bhala ukuqhubeka kwalesi sigaba - IPirates yayiyowina iziqu ezintathu zokuqala ze-NL East ngawo-1990, kodwa yehluleka ukuqhubekela phambili kwi-World Series isikhathi ngasinye. Kokubili ngo-1991 nango-1992  <response>: , balahlekelwa yi-League Championship Series eyayiphikisana kakhulu ne-Atlanta Braves. 