I like to play with my friends in the school district.

He tried to guide people unconsciously using subliminal messaging.

He loves dirty jokes and is always talking about such things.

Her bikini was so daring that her underboob was visible.

He studied classical literature and understood the meaning of the old word 'kudaru'.

He points out other people's problems without noticing his own, a perfect example of 'the darkest place is under the candlestick'.

He achieved a four concealed triples in mahjong.

She used her depressor labii inferioris to lower the corners of her mouth.

This square moated burial is one of the important archaeological sites of ancient Japan.

A lower triangular matrix is a matrix where all the elements below the main diagonal are zero.