Examples of possible syntax: 'antinori tignanello': one of the terms must be present. '+antinori +tignanello': both terms must be present. '+antinori tignanello': "antinori" must be present and, eventually, "tignanello" can be present. '+antinori -tignanello': "antinori" must be present, but not "tignanello". '+antinori +(<tignanello >sangiovese)': "antinori" e "tignanello" or "antinori" e "sangiovese" must be present, but "antinori" and "sangiovese" records have higher relevance. ("<" indicates lower relevance, ">" indicates higher relevance). '"antinori tignanello"': the exact sequence "antinori tignanello" must be present.

Examples of possible syntax: 'antinori tignanello': one of the terms must be present. '+antinori +tignanello': both terms must be present. '+antinori tignanello': "antinori" must be present and, eventually, "tignanello" can be present. '+antinori -tignanello': "antinori" must be present, but not "tignanello". '+antinori +(<tignanello >sangiovese)': "antinori" e "tignanello" or "antinori" e "sangiovese" must be present, but "antinori" and "sangiovese" records have higher relevance. ("<" indicates lower relevance, ">" indicates higher relevance). '"antinori tignanello"': the exact sequence "antinori tignanello" must be present.