def timespan_2_trisects_timespan_1(timespan_1=None, timespan_2=None, hold=False):
    r'''.. versionadded:: 2.11

    Make time relation indicating that `timespan_2` trisects `timespan_1`:

    ::

        >>> z(timerelationtools.timespan_2_trisects_timespan_1())
        timerelationtools.TimespanTimespanTimeRelation(
            timerelationtools.CompoundInequality([
                timerelationtools.SimpleInequality('timespan_1.start_offset < timespan_2.start_offset'),
                timerelationtools.SimpleInequality('timespan_2.stop_offset < timespan_1.stop_offset')
                ],
                logical_operator='and'
                )
            )

    Return time relation or boolean.
    '''
    from abjad.tools import timerelationtools

    time_relation = timerelationtools.TimespanTimespanTimeRelation(
        timerelationtools.CompoundInequality([
            'timespan_1.start_offset < timespan_2.start_offset',
            'timespan_2.stop_offset < timespan_1.stop_offset',
            ]),
        timespan_1=timespan_1,
        timespan_2=timespan_2)

    if time_relation.is_fully_loaded and not hold:
        return time_relation()
    else:
        return time_relation
