With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Joan Cusack worked with Wilford Brimley.
text_B: Trunk muscles can be broadly divided into hypaxial muscles , which lie ventral to the horizontal septum of the vertebrae and epaxial muscles , which lie dorsal to the septum .. septum. septum. vertebrae. vertebrae. Hypaxial muscles include some vertebral muscles , the diaphragm , the abdominal muscles , and all limb muscles .. diaphragm. Thoracic diaphragm. Epaxial muscles include other -LRB- dorsal -RRB- muscles associated with the vertebrae , ribs , and base of the skull .. vertebrae. vertebrae. In humans , the erector spinae , the transversospinal muscles -LRB- including the multifidus , semispinalis and rotatores -RRB- , the splenius and suboccipital muscles are the only epaxial muscles .. erector spinae. erector spinae. multifidus. multifidus. semispinalis. semispinalis muscle. rotatores. rotatores muscles. splenius. splenius muscles. suboccipital. Suboccipital muscles
not_related.