I've got some data, within it reside multiple record chunks that I want. The desired record chunks are randomly spaced within the data. The desired record chunks are composed of 4 consecutive records. The record chunks all start with records whose column 5 & 6 contain the characters "99", and then just include the next 3 records (which may or may not contain "99" at column 5 & 6). Outside of the desired record chunks no other records contain characters "99" in column 5 & 6. The four records of each record chunk are consecutive in the data, but have no common elements or other relation. And the fifth record could be anything: there's no dedicated end string (even within the 4 records themselves).
I've included a sampling of data below. Records 3, 10, 18 contain "99" at column 5 & 6. So the desired output would contain only records 3,4,5,6,10,11,12,13,18,19,20,21 Any ideas? 4L3XEBFVWYR6 5O1SLFG7AILX 4BW699ETK82T S9SK9DIER6L5 G3AHUKPA4H3I Q8ZLYL8G46JY COB8GJK1AE5N 78MKNQJ8MA6S 917JZQ33CXOI OQN699MQ60GQ Z8VOSOZH6V7L VC9V78SK49YS L0PI3TLT7PGC GFI4QQB1OPA6 YUBSPLB73SFG O7NNK3B20GJD 3YPU0MCNSMZN R4C899NNU9UB FIZK74USTG8F OF88HQGAOL3S I4O29VT3BMG6 HPXNGMQQK01G CUBL7RY00CIQ OBR4YA3Y9GF8 D28H3IA7PKAX --Shawn S.
