function[obj] =  setLabelRelativeToPattern(objs, target, name, time)

%% define possible coding styles of markers
if (~ischar(name))
    error('Pattern must be character array')
end

%% lookup label_pattern:

label_ind = find(~cellfun(@isempty,regexp(obj.label_patterns, target)));
if isempty(item)
    error(sprintf('Target label is unknown: %s', target));
end

e.subjects.sessions.label_dependencies{label_ind} = {name time};