Begin processing the 1st record. Run 1, Event 1, LumiSection 1 on stream 0 at {Timestamp} 
%MSG-i NoFreshErrors:  UTC_SUMMARY:ssm_sum Run: 1 Event: 1
Not in this event, anyway
%MSG

Begin processing the 2nd record. Run 1, Event 2, LumiSection 1 on stream 0 at {Timestamp} 
%MSG-i NoFreshErrors:  UTC_SUMMARY:ssm_sum Run: 1 Event: 2
Not in this event, anyway
%MSG

Begin processing the 3rd record. Run 1, Event 3, LumiSection 1 on stream 0 at {Timestamp} 
%MSG-e cat_A:  UTC_S1:ssm_1a Run: 1 Event: 3
S1 with identifier 11 n = 3
%MSG
%MSG-e grouped_cat:  UTC_S1:ssm_1a Run: 1 Event: 3
S1 timer with identifier 11
%MSG
%MSG-e cat_A:  UTC_S2:ssm_2a Run: 1 Event: 3
S2 with identifier 21
%MSG
%MSG-e grouped_cat:  UTC_S2:ssm_2a Run: 1 Event: 3
S2 timer with identifier 21
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 3
S2B with identifier 21
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 3
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 3
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 3
more S2B
%MSG
cat_A   UTC_S1:ssm_1a   1
cat_A   UTC_S2:ssm_2a   1
cat_B   UTC_S2:ssm_2a   4
grouped_cat   UTC_S1:ssm_1a   1
grouped_cat   UTC_S2:ssm_2a   1

Begin processing the 4th record. Run 1, Event 4, LumiSection 1 on stream 0 at {Timestamp} 
%MSG-e cat_A:  UTC_S1:ssm_1a Run: 1 Event: 4
S1 with identifier 11 n = 4
%MSG
%MSG-e grouped_cat:  UTC_S1:ssm_1a Run: 1 Event: 4
S1 timer with identifier 11
%MSG
%MSG-e cat_A:  UTC_S2:ssm_2a Run: 1 Event: 4
S2 with identifier 21
%MSG
%MSG-e grouped_cat:  UTC_S2:ssm_2a Run: 1 Event: 4
S2 timer with identifier 21
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 4
S2B with identifier 21
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 4
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 4
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 4
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 4
more S2B
%MSG
cat_A   UTC_S1:ssm_1a   1
cat_A   UTC_S2:ssm_2a   1
cat_B   UTC_S2:ssm_2a   5
grouped_cat   UTC_S1:ssm_1a   1
grouped_cat   UTC_S2:ssm_2a   1

Begin processing the 5th record. Run 1, Event 5, LumiSection 1 on stream 0 at {Timestamp} 
%MSG-e cat_A:  UTC_S1:ssm_1a Run: 1 Event: 5
S1 with identifier 11 n = 5
%MSG
%MSG-e grouped_cat:  UTC_S1:ssm_1a Run: 1 Event: 5
S1 timer with identifier 11
%MSG
%MSG-e cat_A:  UTC_S2:ssm_2a Run: 1 Event: 5
S2 with identifier 21
%MSG
%MSG-e grouped_cat:  UTC_S2:ssm_2a Run: 1 Event: 5
S2 timer with identifier 21
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 5
S2B with identifier 21
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 5
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 5
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 5
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 5
more S2B
%MSG
%MSG-e cat_B:  UTC_S2:ssm_2a Run: 1 Event: 5
more S2B
%MSG
cat_A   UTC_S1:ssm_1a   1
cat_A   UTC_S2:ssm_2a   1
cat_B   UTC_S2:ssm_2a   6
grouped_cat   UTC_S1:ssm_1a   1
grouped_cat   UTC_S2:ssm_2a   1

