Used when object of the bound is contained in the subject knot. On the first sight, contains predicate is confusingly similar to is_parent
However, while objects of ``is_parent'' relations can be themselves ``non-terminal'' - that is, they can themselves be subjects of other ``is_parent relations'', objects of bounds predicated with contains should always be terminals (i.e. should not be subjects of other contains relations).
Implemented to allow for possibility to have one and same recording included in several distinct container knots. Currently used mostly by the play template.
Subject knot is translation of the object knot.
Specifies relation between knot containing text T and knot containing speech recording of one single act of uttering T.
Used by templates play, read and paaren.
Subject (meronym) is a part of object (holonym). Similar to is_parent and contains predicates but with flipped order of parameters.
Used mainly by HMPL and BDLP templates.