1. Of indicates belonging or connection.

a. Of identifies a thing as a connection or part of another thing.
the pages of the book
the leaves of the tree

b. Of identifies people, animals, or plants as part of a larger group.

Pattern: noun + of + this/that + noun
the women of that family
the people of that religion

Nouns commonly used after of:
city, club, company, country, culture, descent, faith, family, gender, genus, group, ilk, organization, race, religion, society, species

c. Of identifies ideas or works with their author, artist, or composer.

Pattern: noun + of + noun the works of Shakespeare
the methods of the teacher

Nouns often used before of:
essays, ideas, method, music, novels, opinion, paintings, plays, poems, poetry, songs, work, writing

d. Of identifies an individual or special member of a group or institution.

Pattern: noun + of + noun
the president of the class
the coordinators of the program

Nouns commonly used before of:
captain, citizen, coordinator, dictator, head, hero, heroine, leader, loser, manager, mayor, member, president, secretary, servant, star, student, teacher, treasurer, villain, winner

e. Of identifies a person’s occupation or area of specialization.

Pattern: noun + of + noun
a professor of mathematics
students of cardiology
practitioner of medicine

f. Of indicates a connection with a place.

Pattern: noun + of + noun
a native of Alaska
the birds and animals of Australia

Nouns often used before of:
animal, bird, citizen, graduate, inhabitant, native, people, resident

g. Of indicates a connection with a period of time.
the music of the eighties
the dances of her youth the fourth of July

Precautions while using Refrigerators

Do not use flammable sprays

Do not use flammable sprays such as lacquer and paint near the refrigerator as it could cause an explosion. Solar refrigerators and Thermal mass refrigerators are designed to reduce electrical consumption. Solar refrigerators have the added advantage that they do not use refrigerants that are harmful to the environment or flammable. Typical solar designs are absorption refrigerators that use ammonia as the working gas, and employ large mirrors to concentrate sufficient sunlight to reach the temperature required to free gaseous ammonia from the solvent.[19][20] Most thermal mass refrigerators are designed to use electricity intermittently.