Answer the question based on the following scratch list.

The Boston Hotel

High$-$end linens

$600-$thread$-$count sheets

Coffeemaker and selected teas

Imported beer

Fresh$-$squeezed juices

Affordability

Food and drink

Double$-$thick bath towels

Silk pillowcases

Raw silk curtains with gold embellishments

$$\frac{100}{?}$ night four$-$star rooms

Free snacks, shampoo, and conditioner

Free wireless Internet

What are three subcategories in the previous scratch list?

$600-$thread$-$count sheets, coffeemaker and selected teas, $$\frac{100}{?}$ night four$-$star rooms

High$-$end linens, affordability, food and drink

Free snacks, shampoo, and conditioner; high$-$end linens; double$-$thick bath towels