As a helpful and smart assistant, your task is to parse a given text in any language to Universal Dependency (UD) format including POS tags and dependency relations (HEAD and DEPREL).
Key Components of UD Annotation:
1. Tokens: The fundamental units within UD are tokens. These can be individual words, punctuation marks, or even parts of multi-word expressions. Each token has several associated attributes.
2. UPOS Tags: The UPOS field in the CoNLL-U format represents the universal part-of-speech tag assigned to each word. This tag is part of a universal POS tag set designed to be applicable across different languages. The UPOS tags include categories such as NOUN, VERB, ADJ (adjective), ADV (adverb), PRON (pronoun), DET (determiner), and more. 
3. Dependency Relations: Dependency relations are the core of the syntactic representation. They form a tree structure over the tokens in a sentence. Here's how they work:
    - HEAD: This field indicates the head of the current word. The head is the word that the current word is connected to in the dependency parse tree. The value is an integer that corresponds to the ID of the head word within the same sentence. A value of zero (0) indicates that the word is the root of the sentence.
    - DEPREL: The DEPREL field specifies the type of dependency relation between the current word and its head (as specified in the HEAD field). The value is a universal dependency relation or a language-specific subtype of such a relation.
Note: Blank lines are used to mark the boundaries between sentences.
Example:
Let's analyze this sentence with its UD annotation:
"The big dog chased the cat."
1. Tokenization:
- The
- big
- dog
- chased
- the
- cat
- .
2. UPOS Tags:
- The: DET
- big: ADJ
- dog: NOUN
- chased: VERB
- the: DET
- cat: NOUN
- .: PUNCT
3. Head node (parent):
- The: the parent of this word is "dog" at position 3
- big: the parent of this word is "dog" at position 3
- dog: the parent of this word is "chased" at position 4
- chased: this is the root node, therefore its head is 0
- the: the parent of this word is "cat" at position 6
- cat: the parent of this word is "chased" at position 4
- .: the parent of this word is "chased" at position 4
3. Dependency Relations:
- root(ROOT, chased)
- det(dog, The)
- amod(dog, big)
- nsubj(chased, dog)
- det(cat, the)
- obj(chased, cat)
Combining the above annotations, the final output in UD format is:
Position	Tokenization	UPOS	Head	Deprel
1	The	DET	3	det
2	big	ADJ	3	amod
3	dog	NOUN	4	nsubj
4	chased	VERB	0	ROOT
5	the	DET	6	det
6	cat	NOUN	4	obj
7	.	PUNCT	4	punct
Generate UD annotations for the following tokenized text:
However, in April 2001, the IAEA published Fifteen Years after the Chernobyl Accident - Lessons learned. which contradict the earlier reports.
Postion	Tokenization
1	However
2	,
3	in
4	April
5	2001
6	,
7	the
8	IAEA
9	published
10	Fifteen
11	Years
12	after
13	the
14	Chernobyl
15	Accident
16	-
17	Lessons
18	learned
19	.
20	which
21	contradict
22	the
23	earlier
24	reports
25	.
Position	Tokenization	UPOS	Head	Deprel
1	However	ADV	9	advmod
2	,	PUNCT	9	punct
3	in	ADP	4	case
4	April	PROPN	9	obl
5	2001	NUM	4	nummod
6	,	PUNCT	9	punct
7	the	DET	8	det
8	IAEA	PROPN	9	nsubj
9	published	VERB	0	root
10	Fifteen	PROPN	11	compound
11	Years	PROPN	15	nmod:tmod
12	after	ADP	15	case
13	the	DET	15	det
14	Chernobyl	PROPN	15	compound
15	Accident	PROPN	17	nmod
16	-	PUNCT	17	punct
17	Lessons	PROPN	9	obj
18	learned	VERB	17	acl
19	.	PUNCT	17	punct
20	which	PRON	21	nsubj
21	contradict	VERB	17	acl:relcl
22	the	DET	24	det
23	earlier	ADJ	24	amod
24	reports	NOUN	21	obj
25	.	PUNCT	9	punct