"Justice as Fairness: Political not Metaphysical" is an essay by John Rawls, published in 1985. ... In it he describes his conception of justice. It comprises two main principles of liberty and equality; the second is subdivided into Fair Equality of Opportunity and the Difference Principle.
Participles are words that are formed from verbs but act as adjectives. They are called <em>verbals</em>. What is more, phrases are a group of words without a subject and a verb that function as as single part of speech. Therefore, participles consist of the participle and its complements and modifiers.
Taking all this into account, it can be said that the participial phrase is "trimmed that morning" and that it modifies the noun "grass". This is a past participle which is further specified by the NP "that morning" which gives information about the time in which the grass was trimmed.
What’s the passage? I can’t answer this question if I don’t know the source-
The difference between the split ring commutator in a DC motor and the slips rings in an AC generator can be tricky. The split ring makes changes in the rotation every so often. A slip ring just stays in place and is only used as a connector. So a slip ring is for DC, whereas the split ring is used for AC.
B - too specific for the purpose
While that would be a good topic sentence, it is far too specific for the thesis of an entire essay