SOPs is the plural of SOP (Standard Operating Procedure); SOP's, the "s" could be the abbreviation of the genitive case or of the to be verb.

no sop is a person who is weak or hurt and can not fight

"sop", the almost universally accepted abbreviation simply means "standard operating procedure". In any organization, there are set ways of doing things, accepted by most of the organization, as the "correct way" to do something. This "sop" may be a written down document (e.g. procedures or working instructions) or some practices that have long been established to have been recognised as the only way to do certain things, at least within that organization.

The population of Sop Tui is 15,100.

The population of Sop Pat is 5,905.