tokens: The presence of a flagellum was not required for binding of P . aeruginosa to macrophages but was critical for the subsequent internalization of the bacterium , suggesting that this factor or a surface ligand associated with its assembly was responsible for stimulation of nonopsonic phagocytosis .
folded_tokens: the presence of a flagellum was not required for binding of p . aeruginosa to macrophages but was critical for the subsequent internalization of the bacterium , suggesting that this factor or a surface ligand associated with its assembly was responsible for stimulation of nonopsonic phagocytosis .
labels: O O O O B-body_part O O O O O O B-mono_cell I-mono_cell I-mono_cell O B-cell_type O O O O O O O O O B-mono_cell O O O O O O O O O O O O O O O O O O B-other_name I-other_name O