diff --git a/02-UML/PDF/Sequence.pdf b/02-UML/PDF/Sequence.pdf
new file mode 100644
index 0000000..5204fc2
Binary files /dev/null and b/02-UML/PDF/Sequence.pdf differ
diff --git a/02-UML/blinkerProject.gaphor b/02-UML/blinkerProject.gaphor
index a313dfd..a0dd7c5 100644
--- a/02-UML/blinkerProject.gaphor
+++ b/02-UML/blinkerProject.gaphor
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+</head-connection>
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+</MessageItem>
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+<diagram>
+<ref refid="35331abe-f93c-11ed-958e-63f0557fde52"/>
+</diagram>
+<horizontal>
+<val>0</val>
+</horizontal>
+<orthogonal>
+<val>0</val>
+</orthogonal>
+<parent>
+<ref refid="64b95ce7-0df2-11ee-89fd-70321791c511"/>
+</parent>
+<subject>
+<ref refid="1c2cac32-0df4-11ee-a29c-70321791c511"/>
+</subject>
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+<val>(1.0, 0.0, 0.0, 1.0, 1035.2170253559248, 624.3964689158051)</val>
+</matrix>
+<points>
+<val>[(-3.92117329307996, 0.0), (265.0132588083155, 0.0)]</val>
+</points>
+<head-connection>
+<ref refid="56296ee8-0df2-11ee-9dbf-70321791c511"/>
+</head-connection>
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+<interaction>
+<ref refid="64b90928-0df2-11ee-8317-70321791c511"/>
+</interaction>
+<name>
+<val>endBlink()</val>
+</name>
+<presentation>
+<reflist>
+<ref refid="1c2af0ed-0df4-11ee-9f8d-70321791c511"/>
+</reflist>
+</presentation>
+<receiveEvent>
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+</receiveEvent>
+<sendEvent>
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+</sendEvent>
+</Message>
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+<covered>
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+</covered>
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+</sendMessage>
+</MessageOccurrenceSpecification>
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+<receiveMessage>
+<ref refid="1c2cac32-0df4-11ee-a29c-70321791c511"/>
+</receiveMessage>
+</MessageOccurrenceSpecification>
+<Comment id="fc79976d-0df4-11ee-a9bf-70321791c511">
+<body>
+<val>nBlink: 1</val>
+</body>
+<presentation>
+<reflist>
+<ref refid="fc79976e-0df4-11ee-8328-70321791c511"/>
+</reflist>
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+<val>50.19209415456646</val>
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+<diagram>
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+<ref refid="fc79976d-0df4-11ee-a9bf-70321791c511"/>
+</subject>
+</CommentItem>
+<Comment id="70e1eab4-0df5-11ee-b72b-70321791c511">
+<body>
+<val>nBlink: 2</val>
+</body>
+<presentation>
+<reflist>
+<ref refid="70e1eab5-0df5-11ee-908e-70321791c511"/>
+</reflist>
+</presentation>
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+<diagram>
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+<subject>
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+</subject>
+</CommentItem>
+<Comment id="7cccdb40-0df5-11ee-a2be-70321791c511">
+<body>
+<val>nBlink: 3</val>
+</body>
+<presentation>
+<reflist>
+<ref refid="7ccd0253-0df5-11ee-911d-70321791c511"/>
+</reflist>
+</presentation>
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+<diagram>
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+</diagram>
+<subject>
+<ref refid="7cccdb40-0df5-11ee-a2be-70321791c511"/>
+</subject>
+</CommentItem>
 </gaphor>
\ No newline at end of file