Connectives that express the example relationship are used to illustrate what has just been talked about. There are no words in English that function solely as conjunctions for this purpose.
Conjunctive Adverbs and the Example Relationship
Conjunctive adverbs that commonly introduce an example are the following:
for example
for instance
The use of for example is illustrated in the sentence below.
Frederick Law Olmstead designed many famous parks; for example, in 1894 he came to Rochester and developed the plan for Seneca Park.
Prepositions and the Example Relationship
Two prepositions that express the example relationship are the following:
including
such as
The use of for example is illustrated in the sentence below.
Frederick Law Olmstead designed many famous parks, including Rochester's Seneca Park and New York's Central Park.