$ cat pm_1227048_raw_1 | head -3
a6fbb013-b75f-4dd7-9d1a-24f566020042 => 92.1.3
b6a4c433-72a5-4e1a-b378-4a6b72531ded => 92.1.3
P0118760075 => 92.1.3

##</code><code>##

#!/usr/bin/env perl

use strict;
use warnings;
use autodie;

use Data::Dump;

my @files = qw{
    pm_1227048_raw_1
    pm_1227048_raw_2
    pm_1227048_raw_3
};
my %trio;

for my $file (@files) {
    open my $fh, '<', $file;

    while (<$fh>) {
        chomp;
        my ($k, $v) = split / => /;
        push @{$trio{$k}}, $v;
    }
}

# This step for demonstration purposes only
print "All data:\n";
dd \%trio;

# Extra step due to poor input
print "Data with 2 or more values:\n";
delete @trio{grep @{$trio{$_}} < 2, keys %trio};
dd \%trio;

# Only this step required with better input
print "Data with 3 or more values:\n";
delete @trio{grep @{$trio{$_}} < 3, keys %trio};
dd \%trio;

##</code><code>##

All data:
{
  "06bbe788-e57d-4eda-98ea-74d8a45a0e56" => ["3.2p10s1"],
  "08141110-f817-4c16-bf7b-8d0e6696a95b" => ["91.1.2"],
  "205dae51-ea2e-4db9-ace1-315b940686e6" => ["91.1.2", 8299600120059407],
  "29568879-fcca-4dc6-86be-3c8c86ef26db" => [8497101420498122],
  "2e530dc0-a164-4c06-ae18-332eb6778ebd" => ["3.2p10s1"],
  "37d6871a-3abc-44ee-819a-eea33440b0a4" => ["3.1p7s7"],
  "55ccc30e-3566-4a00-b219-4b084487384c" => ["92.1.3", 8498350112590600],
  "5f356d12-0213-4d5f-8fe7-08fe1d2a35d9" => ["3.2p10s2"],
  "64bc2611-38a6-4a59-8d80-4f49b7a76f69" => ["92.1.3"],
  "6ad8af7c-c56b-480f-bed6-9591b80cf634" => ["3.0p9s1"],
  "71be5e75-edad-4889-9261-e1ffa89e393f" => ["92.1.3", 8773103940365745],
  "97891097-70d7-4273-b1ae-3b88b460d591" => ["3.2p8s3"],
  "9d986ace-2504-4595-bdbb-1899812e9d54" => ["91.1.2", 8773103910046051],
  "a6fbb013-b75f-4dd7-9d1a-24f566020042" => ["92.1.3", 8499101090018240],
  "a915d30a-541c-4f5e-9b2f-297352f7e19c" => ["92.1.3", 8777703187635225],
  "b2c6e317-2072-4e3a-9278-5f76af49221a" => [8499102590027251],
  "b4206f77-25e9-4ccd-b434-2237360f1f8c" => ["3.1p10s1"],
  "b6a4c433-72a5-4e1a-b378-4a6b72531ded" => ["92.1.3"],
  "c6e0b7c8-4999-4e83-b7d9-c28a62613614" => ["92.1.3", 8495741441414558],
  "c8b2958f-7777-45e2-929a-adbe41f5055f" => ["3.2p10s1"],
  "dff7f963-ec15-440a-9150-b61f55afe8a4" => ["3.2p9s1"],
  "e173efe4-76f8-47fa-9923-500a3fe9715d" => ["92.1.0", 8773102120218526],
  "P0107577526" => ["3.2p3s1"],
  "P0112055731" => ["3.2p10s1"],
  "P0116761501" => ["3.2p10s1"],
  "P0118760075" => ["92.1.3", 8495840020455261],
  "P0127439637" => ["92.1.3", 8155600386311784],
  "P0127646016" => ["3.2p10s1"],
  "P0128132579" => ["3.2p10s1"],
  "P0128193326" => [8993110670064343],
  "P0130482072" => ["92.1.3", 8499100024861022],
}
Data with 2 or more values:
{
  "205dae51-ea2e-4db9-ace1-315b940686e6" => ["91.1.2", 8299600120059407],
  "55ccc30e-3566-4a00-b219-4b084487384c" => ["92.1.3", 8498350112590600],
  "71be5e75-edad-4889-9261-e1ffa89e393f" => ["92.1.3", 8773103940365745],
  "9d986ace-2504-4595-bdbb-1899812e9d54" => ["91.1.2", 8773103910046051],
  "a6fbb013-b75f-4dd7-9d1a-24f566020042" => ["92.1.3", 8499101090018240],
  "a915d30a-541c-4f5e-9b2f-297352f7e19c" => ["92.1.3", 8777703187635225],
  "c6e0b7c8-4999-4e83-b7d9-c28a62613614" => ["92.1.3", 8495741441414558],
  "e173efe4-76f8-47fa-9923-500a3fe9715d" => ["92.1.0", 8773102120218526],
  "P0118760075" => ["92.1.3", 8495840020455261],
  "P0127439637" => ["92.1.3", 8155600386311784],
  "P0130482072" => ["92.1.3", 8499100024861022],
}
Data with 3 or more values:
{}