Mention the type of Keywords?

The keywords are classified into four types on the basis of how likely visitors will click on it they are:  

• Research Keywords: It tends to contain the name of the product or service and can contain one or two words – e.g. Speaker.
• Consideration: It tends to describe the product a little and can contain two or three words – e.g. wireless speaker
• Purchase: Should be related to purchasing of the product and must have more than three words – e.g. Buy a speaker
• Loyalty: such keywords are shorter- e.g. JBL