The phrase "also includes a second" is correct and usable in written English.
It can be used when referring to an additional item or element that is part of a larger group or list.
Example: "The report also includes a second analysis that provides further insights into the data."
Alternatives: "also contains a second" or "additionally features a second".
How and why her grief makes her want to jump out of an airplane frames the episode, which also includes a second story about apiarists coping with the loss of their bees.
The record — haunting, melancholy, and liquid — earned great critical acclaim and healthy sales, and now it has been rereleased in a Legacy edition, which also includes a second disc of tracks intended for a never-released second solo album, "Bambu".
Only four tracks, running a total of twenty-three minutes, offer previously unheard performances — two complete takes of "Acknowledgement" as played by a sextet that also includes a second tenor saxophonist, Archie Shepp, and the bassist Art Davis, and two takes that break off quickly.
The system also includes a second order reference model which provides the desired attitude vector and its derivative.
In addition to the mineralization of organic compounds due to reaction with hydroxyl radicals discussed above, the Fenton treatment also includes a second stage, i.e. removal by coagulation.
The Ministry of Defence is fully funding the wing, which also includes a second prosthetics department, radiology department and an open-plan gym.
And because their home included the cottage — the cottage also includes a second-floor studio apartment, which is rented for $495 a month — they did not need to contend with any zoning regulations or other restrictions.
The documentary also includes a first-person testimonial from sex abuse survivor, Sue Cox, who was raped by a priest and an interview with Catholic historian John Cornwell.
Even a cursory listen will tell you that there are very few taboo targets on the morning show, which also includes a third personality, Miss Jones, who reports music industry gossip.
