function [iG1C, iG1P, iG2C, iG2P, iG3] = find_gln_ind( arr );
%[iG1C, iG1P, iG2C, iG2P, iG3] = find_gln_ind( arr );

iG1C = find( (arr(:,12) == 0) & (arr(:,13) == 0) );
iG1P = find( (arr(:,12) == 0) & (arr(:,13) == 1) );
iG2C = find( (arr(:,12) == 1) & (arr(:,13) == 0) );
iG2P = find( (arr(:,12) == 1) & (arr(:,13) == 1) );
iG3  = find( (arr(:,12) == 9) & ( (arr(:,13) == 32) | (arr(:,13) == 34) | (arr(:,13) == 34) ) );