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:
U.S. officials have said the plot, thwarted by Britain, to blow up several aircraft over the Atlantic bore many of the hallmarks of al Qaeda.
Postion	Tokenization
1	U.S.
2	officials
3	have
4	said
5	the
6	plot
7	,
8	thwarted
9	by
10	Britain
11	,
12	to
13	blow
14	up
15	several
16	aircraft
17	over
18	the
19	Atlantic
20	bore
21	many
22	of
23	the
24	hallmarks
25	of
26	al
27	Qaeda
28	.
Position	Tokenization	UPOS	Head	Deprel
1	U.S.	PROPN	2	compound
2	officials	NOUN	4	nsubj
3	have	AUX	4	aux
4	said	VERB	0	root
5	the	DET	6	det
6	plot	NOUN	20	nsubj
7	,	PUNCT	6	punct
8	thwarted	VERB	6	acl
9	by	ADP	10	case
10	Britain	PROPN	8	obl
11	,	PUNCT	6	punct
12	to	PART	13	mark
13	blow	VERB	6	acl
14	up	ADP	13	compound:prt
15	several	ADJ	16	amod
16	aircraft	NOUN	13	obj
17	over	ADP	19	case
18	the	DET	19	det
19	Atlantic	PROPN	13	obl
20	bore	VERB	4	ccomp
21	many	ADJ	20	obj
22	of	ADP	24	case
23	the	DET	24	det
24	hallmarks	NOUN	21	obl
25	of	ADP	27	case
26	al	PROPN	27	compound
27	Qaeda	PROPN	24	nmod
28	.	PUNCT	4	punct