Simplify the following text for a Grade 11 native English-speaking person.
Original: It heads a group of satellites called the Portia Group , which includes Bianca , Cressida , Desdemona , Juliet , Rosalind , Cupid , Belinda and Perdita .
Simplified: It heads a group of moons called Portia Group , which includes Bianca , Cressida , Desdemona , Juliet , Rosalind , Cupid , Belinda and Perdita .