doctors have been trying for tens of years to find the cures for many of today s fatal diseases such as AIDS and Cancer (being the most lethal).
(doctors; have been trying; to find the cures for many of today s fatal diseases such as AIDS and Cancer (being the most lethal) Context(doctors have been trying,List([0, 24))):(doctors; have been trying to find; the cures)
doctors have been trying,List([0, 24))
doctors doctors
have been trying have been trying to find
to find the cures for many of today s fatal diseases such as AIDS and Cancer (being the most lethal
the cures