Count the Occurrences of 'OPTIVER' in a Grid

Given a two-dimensional character matrix, create a function that identifies how many times the sequence "OPTIVER" appears. Matches can be found in straight lines either horizontally or vertically, in standard or reverse order. Input Example: ["OPTCrrRO", "ANROHLOp", "UIEJHAQT", "JOVTIVEI", "HDIRdWWV", "OPTIVERe", "HNPREEEr", "POOMLKR"] Output: Return an integer representing the number of occurrences of "OPTIVER" found in the matrix. Constraints: The example input is a character matrix of height n and width m. The sequence can be found in either direction along rows or columns. Example Input "OPTCrrRO,ANROHLOp,UIEJHAQT,JOVTIVEI,HDIRdWWV,OPTIVERe,HNPREEEr,POOMLKR"