process_acknowledged_count_ = 0;
stems_ = 0;
shortest_mom_ = Moment (Rational (1, 4));
process_acknowledged_count_ = 0;
stems_ = 0;
shortest_mom_ = Moment (Rational (1, 4));
stems_ = new vector<Item *>;
grouping_ = new Beaming_pattern ();
beaming_options_.from_context (context ());
stems_ = new vector<Item *>;
grouping_ = new Beaming_pattern ();
beaming_options_.from_context (context ());
beam_start_context_.set_context (context ()->get_parent_context ());
beam_start_moment_ = now_mom ();
beam_start_context_.set_context (context ()->get_parent_context ());
beam_start_moment_ = now_mom ();