42 is a synonym to id = "42" β it finds the object with ID = 42.(title like "sun" AND year < 1950) OR is_good = "true"β finds objects of two groups. First: with titles similar to The Sun also rises or Under the Blood-Red Sun, and with year less then 1950. Plus second: with is_good equals true.email like "@directual.com" AND name != ""β finds objects with email field similar to [email protected], or [email protected], and with not empty name field.birth_date <= "2000-04-09T00:00:00"β finds objects with birth_date before 9th April 2000.