//- 💫 DOCS > USAGE > SPACY 101

include ../../_includes/_mixins

+h(2, "architecture") Architecture

+image
    include ../../assets/img/docs/architecture.svg
    .u-text-right
        +button("/assets/img/docs/architecture.svg", false, "secondary").u-text-tag View large graphic

+table(["Name", "Description"])
    +row
        +cell #[+api("language") #[code Language]]
        +cell
            |  A text-processing pipeline. Usually you'll load this once per
            |  process as #[code nlp] and pass the instance around your application.

    +row
        +cell #[+api("doc") #[code Doc]]
        +cell A container for accessing linguistic annotations.

    +row
        +cell #[+api("span") #[code Span]]
        +cell A slice from a #[code Doc] object.

    +row
        +cell #[+api("token") #[code Token]]
        +cell
            |  An individual token — i.e. a word, punctuation symbol, whitespace,
            |  etc.

    +row
        +cell #[+api("lexeme") #[code Lexeme]]
        +cell
            |  An entry in the vocabulary. It's a word type with no context, as
            |  opposed to a word token. It therefore has no part-of-speech tag,
            |  dependency parse etc.

    +row
        +cell #[+api("vocab") #[code Vocab]]
        +cell
            |  A lookup table for the vocabulary that allows you to access
            |  #[code Lexeme] objects.

    +row
        +cell #[code Morphology]
        +cell

    +row
        +cell #[+api("stringstore") #[code StringStore]]
        +cell Map strings to and from integer IDs.

    +row
        +row
        +cell #[+api("tokenizer") #[code Tokenizer]]
        +cell
            |  Segment text, and create #[code Doc] objects with the discovered
            |  segment boundaries.

    +row
        +cell #[+api("tagger") #[code Tagger]]
        +cell Annotate part-of-speech tags on #[code Doc] objects.

    +row
        +cell #[+api("dependencyparser") #[code DependencyParser]]
        +cell Annotate syntactic dependencies on #[code Doc] objects.

    +row
        +cell #[+api("entityrecognizer") #[code EntityRecognizer]]
        +cell
            |  Annotate named entities, e.g. persons or products, on #[code Doc]
            |  objects.

    +row
        +cell #[+api("matcher") #[code Matcher]]
        +cell
            |  Match sequences of tokens, based on pattern rules, similar to
            |  regular expressions.

+h(3, "architecture-other") Other

+table(["Name", "Description"])
    +row
        +cell #[+api("goldparse") #[code GoldParse]]
        +cell Collection for training annotations.

    +row
        +cell #[+api("goldcorpus") #[code GoldCorpus]]
        +cell
            |  An annotated corpus, using the JSON file format. Manages
            |  annotations for tagging, dependency parsing and NER.