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As part of its ongoing anti-harassment program , Mitsubishi requires each employee to attend sexual harassment prevention training every two years . I have equipment that is 15 , 20 years old and it is still going like hell because it has to , but you do not want to see my repair bill every year because I cannot afford to buy new . We suggest a scenario that the continuous mass inflow into the Galactic nucleus makes it active by igniting the SMBH or stimulating a starburst every 10 ^ 8 yr , but each active phase continues only < 10 ^ 7 yr since a large number of SNe resulting from newly born massive stars cease the mass supply soon . Invisible hosts are marshalled , eager to rush forth and crown every effort , however humble , however belated , exerted to speed the unfinished tasks .