whats the frequency of the letter a in:
a collection of previously lost, now restored episodes - known by fans as the orphaned episodes - from the legendary doctor who series. episodes are: the crusade (1); the crusade (3) - with commentary by julian glover and gary russell; the daleks master plan (2) - with commentary by peter purves, kevin stoney and ray cusick; the daleks master plan (5); the daleks master plan (10); the celestial toymaker (4); the underwater menace (3); the moonbase (2); the moonbase (4); the faceless ones (1); the faceless ones (3); the evil of the daleks (2) - with commentary by deborah watling and gary russell; the abominable snowmen (2) - with commentary by deborah watling and gary russell; the enemy of the world (3); the web of fear (1) - with commentary by deborah watling, derrick sherwin and gary russell; the wheel in space (3); the wheel in space (6) - with commentary by derrick sherwin and tristan de vere cole; and the space pirates (2). audio only episodes are: the crusade (2); the crusade (4); the moonbase (1); and the moonbase (3).

user
The total number of "a"s in that passage is 66.
assistant