Examples for Query

1) I need to find a witness. 2) I know the collection or codex contains "diez" and "57".

1) I want a list of codices 2) I know the ahlward number, but I also know that sometimes alwardt is on a witness or on a codex or on a text

1) I want a list of ahlwardt numbers in a codex 2) I know an ahlwardt number for that codex

1) I want a list of people with a role (whether or not the relation has_role exists) 2) I know the name of that role

1) I want people 2) I know a name and a role

1) I want people 2) I know their role and a place they lived

I know something in the connected objects (codex, collection, library) has an attribute "dietz" and an attribute "57"

Select Codex, Witness, Text where --relations: Witness is examplar of Text