Complex sentence: In December 1978, three political pressure groups joined the party; they were the Nigeria Tenants and Labour Congress, headed by I.H. Igali, the Nigeria Social Democratic Congress, led by Balali Dauda and the Youth Force Alliance, led by Olayinka Olabiwonu.
Split into simpler sentences: In December 1978, three political pressure groups joined the party. They were the Nigeria Tenants and Labour Congress, headed by I.H. Igali, the Nigeria Social Democratic Congress, led by Balali Dauda and the Youth Force Alliance, led by Olayinka Olabiwonu.