Three women talk to each other next to another woman sitting on a motorcycle.
A group of women went for a motorcycle ride.
Just because they are sitting on a motorcycle does not men they went for a motorcycle ride.
Just because a group of women are talking next to someone sitting on a motorcycle does not mean they will go for a motorcycle ride.  Though three is a group of women, not all groups of women have three women.
Just because next to motorcycle does not mean they went for a motorcycle ride.