D. Puerto Rico September 1990 casesLipsett v. Univ. of Puerto RicoZayas Rodriguez v. HernandezSerrano Caraballo v. Roman HernandezRoman Figueroa v. Torres MolinaAsociacion de Pescadores de Vieques v. SantiagoTorres-Ruiz v. Torres-RuizFranceschi v. Hyatt Corp.