Lots of people in different costumes at some kind of party .
There are lots of people who are wishing they were at a party .
Lots of people in different costumes at some kind of party.
There are lots of people who are wishing they were at a party.
If people are wishing they were at a party, they are not at some kind of party, but rather doing something else.
If people are wishing they were at a party , they are not at some kind of party , but rather doing something else .