Usa "rough drawing" in una frase

1. Is there a map I could use? I wouldn’t want to end up in a minefield or something now, would I?” he said and smiled, while the manager found the joke lacking and simply gave Ethan a shoddy, trodden piece of paper that was a rough drawing of the relative locations of the hotel, the river, the city center and the harbor

2. Through drawing by watercolor, historians were able to uncover the livelihood and mysteries of people in the past

3. details through drawings and prototypes, then calculating materials and cutting lists