The Doctor promises to help the Chameleons' scientists with their research into a permanent cure for their condition.
(The Doctor; promises; to help the Chameleons' scientists with their research into a permanent cure for their condition) Context(The Doctor promises,List([0, 19))):(The Doctor; promises to help; the Chameleons' scientists with their research)
The Doctor promises,List([0, 19))
The Doctor The Doctor
promises promises to help
to help the Chameleons' scientists with their research into a permanent cure for their condition
the Chameleons' scientists with their research