source of title造句

Many documents lack any title at all ( whereas for later stories they are clearer ), including the 1974 BBC Enterprises listing " A Quick Guide to Doctor Who ", which was the main source of titles for most early fan reference works.
In all legislation, whether of Congress or of the state or territory, and by all mining regulations and rules, discovery and appropriation are recognized as the sources of title to mining claims, and development by working as the condition of continued ownership until a patent is obtained.
When the daughter runs to the sister in California ( earthquake country, source of title and symbolism ) after a family fight, Mom follows and meets the loner, whose slogan is " carpe diem " _ " it's the only way to live, " he says.
It's difficult to find source of title in a sentence. 用source of title造句挺难的