1a. Elements for the over 8300 meter mountains

//mountain[@height>8300]

1b. Names of mountains climbed in the winter

//mountain[winter]/@name

1c. Names of mountains in the Himalayan mountain range

//range[@name="Himalayan"]/mountain/@name

1d. Names of mountains at least partially within Nepal

//mountain[country="Nepal"]/@name

2a. Elements for teams with more than 4 members

let $sequence-1 := (

for $x in //mountain

where (count($x/first/member) > 4)

let $x/first

)

let $sequence-2 := (

for $y in //mountain

where (count($y/winter/member) > 4)

let $y/winter

)

for $item in ( ($sequence-1, $sequence-2))

return $item

2b. Names of mountains ordered by height

for $x in //mountain

order by $x/@height

return $x/@name

2c. Names of mountains not yet climbed in winter

for $m in //mountain

where not($m/winter)

return $m/@name

2d. Names of all team members, on all expeditions, ordered alphabetically,

with no duplicates

for $x in distinct-values(//member)

order by $x

return $x

3a. Names and dates of death of those who died on Lhotse.

for $m in //table

where $m/@title = 'Lhotse'

return $m//td[position() = 1 to 2]

3b. (requires a join with monsters.xml above) Names of those who died on

'The Killing Mountain'

let $d := doc('tragedies.xml')

let $m := doc('monsters.xml')

let $mountainName := $m//mountain[nickname = "The Killing

Mountain"]/@name

for $x in $d//table

where $x/@title=$mountainName

return $x/tr/td[2]