Here are some concepts: mustard, plate, relish

What is a sentence about these concepts?

Sentence is below.
Hotdog with mustard, relish, and onions on colorful plate.

Here are some concepts: light, sky, spot

What is a sentence about these concepts?

Sentence is below.
there were some unexplained formations found after bright lights were spotted in the sky

Here are some concepts: calendar, coffee, cup

What is a sentence about these concepts?

Sentence is below.
calendar on a tablet computer and cup of coffee

Here are some concepts: building, gather, member

What is a sentence about these concepts?
Sentence is below.
members are silhouetted as they gather after the building officially opened