Explanation:
The groups we are considering are:
In the case of an oil company their news headline bias may read;
"The energizing our society project" (we notice the bias here that it didn't comment on the fact it was built next to a national park).
An Environmentalist group headline may read;
"Destroying our natural park" ( the bias here is that they only emphasize the damage of the pipeline on the natural park)
While an unbiased reporter's headline may read;
"A new oil pipeline to be built next to a national park."