A FLWOR expression consists of the following parts in order

1. Zero or more for- and let-clauses.
2. An optional where-clause.
3. An optional order by-clause.
4. Exactly one return-clause.

Example 1

let $woman := "Alice", $man := "Bob"
return <Greeting>Hello {$woman} and {$man}</Greeting>

Example 2

let $movies := doc("Movies.xml")
for $m in $movies/Movies/Movie
return $m/Version/Star

Example 3

let $movies := doc("Movies.xml")
for $m in $movies/Movies/Movie
return <Movie title = "{$m/@title}">{$m/Version/Star}</Movie>

Example 4

let $starSeq := (
    let $movies := doc("Movies.xml")
    for $m in $movies/Movies/Movie
    return $m/Version/Star
)
return <Stars>{$starSeq}</Stars>