If we had substituted 'Green Park' for 'Regent's Park' a false proposition would have resulted.

Also the erection of a second college in Regent's Park would make the proposition false, though in ordinary life common sense would politely treat it as merely ambiguous.
'The Iliad' for a classical scholar is usually a demonstrative phrase; for it demonstrates to him a well-known poem.

But for the majority of mankind the phrase is descriptive, namely, it is synonymous with 'The poem named "the Iliad".' Names may be either demonstrative or descriptive phrases.

For example 'Homer' is for us a descriptive phrase, namely, the word with some slight difference in suggestiveness means 'The man who wrote the Iliad.' This discussion illustrates that thought places before itself bare objectives, entities as we call them, which the thinking clothes by expressing their mutual relations.

Sense-awareness discloses fact with factors which are the entities for thought.