How do I extract/remove this using Log Parser

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CSV

text

parsing

logging

This are the two lines example:

Jan 1 22:54:17 drop %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 70.77.116.190; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2612;
Jan 1 22:54:22 drop %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 61.164.41.144; dst: %DSTIP%; proto: udp; product: VPN-1 & FireWall-1; service: 5060; s_port: 5069;

What I want to ask if how do I remove %LOGSOURCE% from all indexes in this log file using log parser? Do I need to classify them into different columns first before doing that?