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   81706
   A broad and skewed line feature from Seyfert galaxies has been
   interpreted to origineate from the innermost region of an accretion
   disk. These features are detected not only from Seyfert 1 but also
   Seyfert 2 galaxies. However, the inclination angles obtained from
   "disk-line" fits to their spectra are always around 30 Deg, which is
   inconsistent with a unified scheme of Seyfert 1 and 2 galaxies. One
   interpretation could be an addition of a 6.4 keV line from a far
   outside to the disk-line from the inside but if so, time scales of the
   intensity variation of the two line components should be much different
   from each other. To investigate such a line profile time variation of
   Seyfert 2 like AGNs, we propose a long observation of one of the
   brightest Seyfert 2-like galaxy, NGC4151.
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