Sentences can be constructed by using that word as an adjective or as a verb.
examples sentences start with each
i will bought a car
This game was a cakewalk
Coinxkuhgfdjyg
Yes you certainly can.
doesn't make sense
I need to get my backpack.
Yellow is a colour which is often linked to cowardice. Yellow rhymes with mellow and fellow. You asked for two sentences using the word yellow but this makes three.
The house has a thatched roof.
mujhe nahi pata
The engine was cleaner and more efficient.