sequenceDiagram
		title: FancySequenceDiagram
		accDescription Test a description
		participant Alice
		participant Bob
		participant John as John
Second Line
		autonumber 10 10
		rect rgb(200, 220, 100)
		rect rgb(200, 255, 200)
		Alice ->> Bob: Hello Bob, how are you?
		Bob-->>John: How about you John?
		end
		Bob--x Alice: I am good thanks!
		Bob-x John: I am good thanks!
		Note right of John: John thinks a long
long time, so long
that the text does
not fit on a row.
		Bob-->Alice: Checking with John...
		Note over John:wrap: John looks like he's still thinking, so Bob prods him a bit.
		Bob-x John: Hey John - we're still waiting to know
how you're doing
		Note over John:nowrap: John's trying hard not to break his train of thought.
		Bob-x John:wrap: John! Are you still debating about how you're doing? How long does it take??
		Note over John: After a few more moments, John
finally snaps out of it.
		end
		autonumber off
		alt either this
		Alice->>+John: Yes
    John-->>-Alice: OK
		else or this
		autonumber
		Alice->>John: No
		else or this will happen
		Alice->John: Maybe
		end
		autonumber 200
		par this happens in parallel
		Alice -->> Bob: Parallel message 1
		and
		Alice -->> John: Parallel message 2
		end